They aren't "out to get you" specifically, but they're engaged in law enforcement.
Bingo. As for those who think you won't have trouble if you're following the rules; I'm pretty sure that I don't know even a minor percentage of all the rules on the books. Oh sure, I know the big ones (don't kill, steal, or rape), but I learned those as a little boy in church. As for whether or not that little piece of metal with the extra hole in it is legal....I'm pretty stupid.