The Nevada Highway Patrol has a deadly serious message: You can only use the carpool lane if all passengers are living.

Officials made that public service announcement on Monday after they pulled over a man driving a hearse in the HOV lane in Las Vegas.

The driver, who hasn’t been identified, told Trooper Travis Smaka he assumed that the body he was transporting to a funeral brought him in compliance with the HOV lane requirement of two or more occupants per vehicle, according to The Associated Press.