Pulled over

The doctors tell me I need to lose weight. In an effort to accommodate them, I have choosen to bypass any fast food restaurants and proceed straight home to make my own meals. This is a nuisance and probably not much better than stopping and picking up a quick dog, being l know not how much better I am at preparing my own food.
Anyway, since I ceased my trolling for quick food, I don't travel the side streets anymore; I take the expressway, and I see EVERY night that the State Police has someone pulled over like it's part of some kind of master plan! Every night after midnight along that same corridor...!? Is it possible, thats when the violators show up, or are they just randomly stopping people?
If they are just randomly stopping people, my turn is quick approaching!