You haven't read media reports that are negative about police?  You're kidding, right?

And you are holding up traffic because a person had a gun held to their head by a cop?  what on earth does that mean?  If your reaction times and ability to recognize what is happening in the traffic about you is becoming an issue, you may want to consider curtailing some driving....you surely don't want to cause an accident.  Could it be that it was you who were surly and projected that onto the officer?  For your comments do seem rather defensive.