You are the only one with a reasoned response for the most part. Unfortunately without a video I would never believe the cop for any reason whatsoever. Pretty sad, but I have seen too much in my life to ever have faith in the police anymore to be honest ever.
I agree that the police have earned a healthy amount of distrust but I have recently had my knee jerk reactions (I called them gut feelings at the time) lead me to the wrong conclusion during the Wilson/Brown shooting. In this case my gut is telling me that the customer was being an unruly a-hole and that the cop responded by also being an a-hole which escalated the whole thing. I have learned however to reserve final judgement until I see video or at least get some credible witness testimony.