Louisiana- Willie Nelson, the public face of Louisville-based Texas Roadhouse restaurants, was issued misdemeanor citations for possession of narcotic mushrooms and marijuana after a traffic stop Monday on a Louisiana highway, state police said.

Four other people also received citations after a commercial vehicle inspection of the country music star’s tour bus, state police said in a news release.

“When the door was opened and the trooper began to speak to the driver, he smelled the strong odor of marijuana,” the news release said. A search of the bus produced 11/2 pounds of marijuana and slightly more than three ounces of narcotic mushrooms.

Texas Roadhouse is a sponsor of Nelson’s tour, and there is a designated “Willie’s Corner” booth in each of its restaurants with photos, a neon sign and other memorabilia. Officials from the restaurant chain could not immediately be reached for comment Tuesday morning.

State police spokesman Willie Williams said there were enough drugs to merit a felony charge of distribution if they had been found in one person’s possession. But all five claimed the drugs as their own and the drugs were not packaged for resale, so each was charged with misdemeanors, he said. All were released after the citations were issued.

Nelson’s publicist, Elaine Schock, said she would have no comment Monday.

Also cited were Tony Sizemore, 59, of St. Cloud, Fla.; Bobbie Nelson, 75, of Briarcliff, Texas; Gates Moore, 54, of Austin, Texas; and David Anderson, 50, of Dallas.

Nelson, 73, has recorded songs including “On the Road Again” and “City of New Orleans.”