Could Have Been Better
The first Rest Stop was okay but this one was just total crap. In fact the overflow of human crap in the mobile outhouse fits perfectly with this movie.
The only reason most guys will watch beyond 30 minutes is the hot chick in shorts. The goofy nerd who doesn't have enough sense to hurry & finish his "business" was just too stupid. When I'm using the bathroom in a strange place I make sure I do it and get the heck out! But this nerd takes a magazine in the outhouse with him?
The original premise would have been better had it just been a serial killer who stalked that area of highway. There have been true stories of serial killers, believed to be truck drivers who are believed to have left girls bodies left over several states (including Tennessee where I live). That is creepy and for anyone who has had to travel the interstates at night the thought of breaking down, etc. is always scary.
However, if I had been at the Rest Stop (in the first film) I would have walked for 30 miles if necessary to escape (staying outta sight of guys in yellow tricks with lights on top)...