This is a b-type movie, probably straight to TV, from late 90s-early to mid 2000s. Can’t remember any actors.
Family + son’s friend go on road trip, they turn off because they see ruins from a crashed airplane. The kid’s friend ends up disappearing right in front of the dad and the dad finally ends up at the police dept, but they don’t seem to take his report seriously/ seem in on it.
Turns out the town is full of people just like them that got stuck there and now they all work on food trucks and the like and seem like zombies.