Factual error: At the 28 minute mark, the Wild Hogs cross the Taos River Gorge Bridge in Taos, New Mexico. Shortly after the scene with the skinny dipping, they drive down the road and at the 34 minute mark, the sign on the right says, 'Missouri State Lane.' I never knew Missouri was inside the state of New Mexico.
Factual error: When the protagonists throw away their cell phones, ostensibly while they are still in Cincinnati, a building in the background says New Mexico on it.
Factual error: The vulture following Dudley is a Lappet-Faced Vulture native to the Sinai. One would not encounter one in New Mexico.
Answer: Most likely one of Tim's jacket pockets.