Cop was being a douche. According to what I saw in the video, she did nothing wrong and he should be fired. Pay cops more, and only pick canadates that would be exceptional at their jobs. Do a stringent personality inventory prior to hiring them. This dude doesn't have the temperament. I almost always am polite to the police because I know what can happen if they're having a bad day. I had a trooper write me a ticket and I gave him some attitude and when he handed the ticket back through the window I looked him in the eye and balled it up and threw it on the floorboard. He asked if I needed him to write another one. I told him no that that one would be fine. He asked me to step out of the car and made me do a sobriety test. It was daylight and I was driving home from college, no chance of me being drunk. He was just being a dick because I was being an asshole.
That was the only time I lost my cool with a cop and it was also the only time I was harassed. I'm not saying it's right, but I know not to back talk a cop as they can make life a bit more difficult for you if they want.