Phil and Lenee Meyer sit by the fire as they tailgate before the AFC Championship NFL football game between the Kansas City Chiefs and the New England Patriots, Sunday, Jan. 20, 2019, in Kansas City, Mo. (AP Photo/Elise Amendola)

An inflated New England Patriots mascot, Pat Patriot, joins fans tailgating in the parking lot of Gillette Stadium before an NFL divisional playoff football game between the Patriots and the Los Angeles Chargers, Sunday, Jan. 13, 2019, in Foxborough, Mass.

Fans tailgate outside Arrowhead Stadium before an NFL divisional football playoff game between the Kansas City Chiefs and the Indianapolis Colts Saturday, Jan. 12, 2019, in Kansas City, Mo.

Fans tailgate before an NFL wild card playoff football game between the Houston Texans and the Indianapolis Colts, Saturday, Jan. 5, 2019, in Houston.

Fans tailgate outside Lambeau Field before an NFL football game between the Green Bay Packers and the Detroit Lions Sunday, Dec. 30, 2018, in Green Bay, Wis. The Packers won 34-20.

Fans tailgate outside of Levi's Stadium before an NFL football game between the San Francisco 49ers and the Chicago Bears in Santa Clara, Calif., Sunday, Dec. 23, 2018.

Fans tailgate in the parking lot of Arrowhead Stadium before an NFL football game between the Kansas City Chiefs and the Los Angeles Chargers, in Kansas City, Mo., Thursday, Dec. 13, 2018.

A group of Buffalo Bills fans from Toronto, Canada, pose for a photo while tailgating in the parking lot of New Era Field before an NFL football game between the Bills and the New York Jets, Sunday, Dec. 9, 2018, in Orchard Park, N.Y.

Fans for the the Green Bay Packers and the Los Angeles Rams take part in tailgating before an NFL football game Sunday, Oct. 28, 2018, in Los Angeles.

Fan tailgate before an NFL football game between the Houston Texans and the Dallas Cowboys, Sunday, Oct. 7, 2018, in Houston.

Fans tailgate before the NFL football NFC championship game between the Philadelphia Eagles and the Minnesota Vikings Sunday, Jan. 21, 2018, in Philadelphia.

Green Bay Packers fan Justin Sipla tailgates before an NFL football game against the Baltimore Ravens Sunday, Nov. 19, 2017, in Green Bay, Wis.

Fans tailgate at Levi's Stadium before an NFL football game between the San Francisco 49ers and the New York Giants in Santa Clara, Calif., Sunday, Nov. 12, 2017.

Nathan Kemps III grills as he tailgates before an NFL football game between the Green Bay Packers and Dallas Cowboys on Sunday, Oct. 8, 2017, in Arlington, Texas.

Fans tailgate prior to an NFL football game between the Buffalo Bills and the Denver Broncos, Sunday, Sept. 24, 2017, in Orchard Park, N.Y.

Fans tailgate at the Oakland Alameda County Coliseum parking lot before an NFL football game between the Oakland Raiders and the New York Jets in Oakland, Calif., Sunday, Sept. 17, 2017.

Fans pose for photos while tailgating prior to an NFL football game between the Buffalo Bills and the Denver Broncos, Sunday, Sept. 24, 2017, in Orchard Park, N.Y.

Cincinnati Bengals fans play a game of corn hole as they tailgate before an NFL football game against the Houston Texans, Thursday, Sept. 14, 2017, in Cincinnati.

Jerry Young prepares food as he tailgates before an NFL football game Sunday, Sept. 10, 2017, in Orchard Park, N.Y.

Fans tailgate in the Oakland Alameda County Coliseum parking lot before an NFL preseason football game between the Oakland Raiders and the Seattle Seahawks in Oakland, Calif., Thursday, Aug. 31, 2017.

Kayla Reardon and Chris Dawson as they tailgate before an NFL preseason football game between the Chicago Bears and the Denver Broncos, Thursday, Aug. 10, 2017, in Chicago.

A fan tailgates before a preseason NFL football game between the Green Bay Packers and the Philadelphia Eagles Thursday, Aug. 10, 2017, in Green Bay, Wis.

Dan Jones, left, of North Andover, Mass., and Billy Burrows, of Billerica, Mass., boil lobsters while tailgating in the parking lot of Gillette Stadium before an NFL preseason football game between the New England Patriots and the Jacksonville Jaguars, Thursday, Aug. 10, 2017, in Foxborough, Mass.

John Skaibinski, right, tends the grill while tailgating with his son Jay in the parking lot of Gillette Stadium before the AFC championship NFL football game between the New England Patriots and the Pittsburgh Steelers, Sunday, Jan. 22, 2017, in Foxborough, Mass.

Fans tailgate before an NFC wild-card NFL football game between the Green Bay Packers and the New York Giants, Sunday, Jan. 8, 2017, in Green Bay, Wis.

Seattle Seahawks fans play a wooden block stacking game as they tailgate before an NFL football NFC wild card playoff game between the Seahawks and the Detroit Lions, Saturday, Jan. 7, 2017, in Seattle.

Fans tailgate outside of Levi's Stadium before an NFL football game between the San Francisco 49ers and the Seattle Seahawks in Santa Clara, Calif., Sunday, Jan. 1, 2017.

Boys jump for the football under the summer sun while tailgating in the parking lot of Gillette Stadium before a preseason NFL football game between the New England Patriots and the New Orleans Saints on Thursday, Aug. 11, 2016, in Foxborough, Mass.

Marco Loya, left, tailgates outside Sports Authority Field at Mile High before an NFL divisional playoff football game between the Denver Broncos and the Pittsburgh Steelers, Sunday, Jan. 17, 2016, in Denver.

Marty Micale grills as fans tailgate before an NFL football game between the Baltimore Ravens and the Cleveland Browns, Sunday, Sept. 18, 2016, in Cleveland.

Fans tailgate outside Lambeau Field before an NFL football game between the Green Bay Packers and the Dallas Cowboys Sunday, Oct. 16, 2016, in Green Bay, Wis.

An Oakland Raiders fan tailgates at Oakland Alameda County Coliseum before an NFL football game between the Oakland Raiders and the Indianapolis Colts in Oakland, Calif., Saturday, Dec. 24, 2016.

Fans tailgate before an NFL football game between the Cincinnati Bengals and the Denver Broncos, Sunday, Sept. 25, 2016, in Cincinnati.

Seattle Seahawks fan Chris Callan, second right, grills as cooks for a tailgate party before an NFL football game between the Seahawks and the San Francisco 49ers, Sunday, Sept. 25, 2016, in Seattle.

Fans tailgate in the parking lot outside Soldier Field before an NFL football game between the Chicago Bears and the Detroit Lions, Sunday, Oct. 2, 2016, in Chicago.

Fans tailgate in the parking lot outside Soldier Field before an NFL football game between the Chicago Bears and the Detroit Lions, Sunday, Oct. 2, 2016, in Chicago.

Fans tailgate before an NFL football game between the Philadelphia Eagles and the Pittsburgh Steelers, Sunday, Sept. 25, 2016, in Philadelphia.

Brian Wackowicz, left, and Andy Ensign, both from Spencer, N.Y., talk while wearing buffalo wing hats while tailgating prior to an NFL football game between the Buffalo Bills and the Cleveland Browns, Sunday, Dec. 18, 2016, in Orchard Park, N.Y.

Fans tailgate before an NFL football game between the Baltimore Ravens and the Cleveland Browns, Sunday, Sept. 18, 2016, in Cleveland.

Billy Burrows, of Billerica, Mass., tends his grill built from a 327 Chevy short block racing engine while tailgating in the parking lot of Gillette Stadium before an NFL football game between the New England Patriots and the Miami Dolphins Sunday, Sept. 18, 2016, in Foxborough, Mass.

A Denver Broncos fan tailgates prior to an NFL football game against the San Diego Chargers, Sunday, Oct. 30, 2016, in Denver.

Lobsters are served at a clambake tailgate before a NFL football game between the New England Patriots and the Miami Dolphins at Gillette Stadium in Foxborough, Mass. Sunday, Sept. 18, 2016.

Fans tailgate prior to an NFL football game between the Arizona Cardinals and the San Francisco 49ers, Sunday, Sept. 27, 2015, in Glendale, Ariz.

Jacksonville Jaguars fans tailgate outside the stadium before an NFL football game against the Houston Texans in Jacksonville, Fla., Sunday, Oct. 18, 2015.

Chicago Bears fans tailgate before an NFL football game between the Chicago Bears and the Green Bay Packers, Sunday, Sept. 13, 2015, in Chicago.

Fans tailgate outside the stadium before an NFL football game between the Carolina Panthers and the Green Bay Packers in Charlotte, N.C., Sunday, Nov. 8, 2015.

A fan tailgate before during an NFL football game between the San Diego Chargers and the Miami Dolphins Sunday, Dec. 20, 2015, in San Diego.

Fans arrive at twilight for an NFL football game between the New England Patriots and Miami Dolphins, Thursday, Oct. 29, 2015, in Foxborough, Mass.

Joe Robinson holds his dog Clay as he tailgates before an NFL football game between the Green Bay Packers and the Kansas City Chiefs Monday, Sept. 28, 2015, in Green Bay, Wis.

Tom Bowman of Canton, Ohio waves a Terrible Towel as he wears a Pittsburgh Steelers helmet he made to honor Steelers running back Jerome Bettis before a preseason NFL football game between the Pittsburgh Steelers and the Minnesota Vikings in Canton, Ohio, Sunday, Aug. 9, 2015.

Tampa Bay Buccaneers fan Kelly Basil ties down his team flags in the wind while tailgating before an NFL football game against the Atlanta Falcons in Tampa, Fla., Sunday, Dec. 6, 2015.

People tailgate before the San Diego Chargers play the Detroit Lions in a football game Sunday, Sept. 13, 2015, in San Diego.

Oakland Raiders fans grill food while tailgating at O.co Coliseum before an NFL preseason football game between the Oakland Raiders and the Arizona Cardinals in Oakland, Calif., Sunday, Aug. 30, 2015.

Fans tailgate before an NFL football game between the Green Bay Packers and the Kansas City Chiefs Monday, Sept. 28, 2015, in Green Bay, Wis.

Denver Broncos fans Adam Avina, right, and Trevor Martinet tailgate prior to an NFL football game against the Cincinnati Bengals, Monday, Dec. 28, 2015, in Denver.

Tennessee Titans fan Chris Clark tailgates outside Nissan Stadium before an NFL football game between the Titans and the Indianapolis Colts Sunday, Sept. 27, 2015, in Nashville, Tenn.

Jacksonville Jaguars fans tailgate with a Christmas tree in their van in the parking lot of EverBank field before an NFL football game between the Jacksonville Jaguars and the Indianapolis Colts in Jacksonville, Fla., Sunday, Dec. 13, 2015.

Football fans tailgate in the parking lot at MetLife Stadium before the start of an NFL football game between the New York Giants and the San Francisco 49ers, Sunday, Oct. 11, 2015, in East Rutherford, N.J.

Kansas City Chiefs fans tailgate before an NFL football game against the New England Patriots at Arrowhead Stadium in Kansas City, Mo., Monday, Sept. 29, 2014.

Miami Dolphins inflatable decorations are displayed by a fan before an NFL football game against the New York Jets, Sunday, Dec. 28, 2014, in Miami Gardens, Fla.

Dallas Cowboys fan Jenson Rush, left, and New York Giants fan Jonathan Rodriguez, 2, of Little Elm, Texas, tailgate with their families before an NFL football game, Sunday, Oct., 19, 2014, in Arlington, Texas.

Pittsburgh Steelers fans tailgate outside Heinz Field before an NFL football game between the Pittsburgh Steelers and Tennessee Titans in Pittsburgh, Sunday, Sept. 8, 2013.

Fans tailgate in the Candlestick Park parking lot before an NFL football game between the San Francisco 49ers and the Arizona Cardinals in San Francisco, Sunday, Dec. 30, 2012.