hmmmm it seems to me that a lot of people here either exagerate their stories a bit too much or that road police are just *milkshakes*!
i've had a pretty solid history with police in the past and they've usually been decent to me to an extent.. but never been assaulted or treated like an absolute piece of shit like some guys here claim to have happened.
If this cop did hit your car and grab you by the throat mate that's seriously farked and i agree with everyone saying next time either try a sneak video or get badge number at least!