I am not a fan of cops, in general, due to knowing too many of them. I was only halfway through the police academy, and I didn't like myself and what I was becoming.
Law enforcement tends to attract a certain type of personality. Add to that the paranoia that gets instilled in them and the fact that most of the time they are dealing with criminals and people lying to them, their attitude can be somewhat understandable.
It helps me to remember two things:
1. When seconds count, the police are only minutes away.
2. You are 8 times more likely to be killed by a cop than a terrorist.