Rest Stop (2006)

Jess picks up his girlfriend, Nicole, in his convertible to head out to California. On the way, Nicole complains she needs to urinate and she urges Jess to find a rest stop. After she exits the building she finds her boyfriend gone. A deranged truck driver with license plate KZL-303 throws her the red cell phone that was in the convertible, convincing her he has Jess. Nicole goes to look for help and notices an recreational vehicle and bangs on the door and asks for help. She has a short eerie ride with the passengers until she is eventually thrown out for looking at the deformed individual hidden behind curtains at the back of the vehicle.