Sounds like you are living with some pretty rotten cops. At least the worst I have to deal with is corrupt cops. The police here are just focused on bilking as much money out of the people as they can with speed traps and citations for just about anything. I remember the local news here about 8 or 9 years ago that said the cops were looking for people who slid off the road due to icy conditions during the winter. The cops would provide the necessary assistance to get the driver back on the road or take care of any injuries, but then they would issue them a reckless driving citation as well.
So while it sucks that they could slam you with a ticket at anytime for almost anything, at least you're not as likely to catch a beating from our police. Not much money to be made in beating people senseless I guess.
The police force in the next town over from mine is well known for pulling stunts like that. The town even gave business owners tax breaks to create "exit only" and "enter only" areas (that are half a mile apart from each other) around a local McDonald's, just to catch people turning into or out of the wrong area. They're pretty awful.