I think he's trying too hard in the end to look good for the camera. But at least he knew he was on camera and didn't go apeshit. I'm willing to be he wouldnt have been so polite off camera. I'm not saying he would go apeshit like the cop in the OP, but this is definitely a good cop. He was trying to suck up at the end, but I'm sure he wouldn't have done anything crossing the line even if he was off camera.
I'm not against what he did but I got a chuckle out of it. I'm pretty sure it was a PR move to do that

like he WANTED to get on youtube with that appearance.