I dragged the video in because it shows why cops are concerned for their safety on a traffic stop. Didn't think that was confusing.
Trust me, every cop on earth wants to stay off NBC for doing something wrong. Me too. But I also want to go home at night, and bad things happen during traffic stops, see video above. Taking a traffic stop, and then throwing a gun into the mix, that maybe you thought they would never see, or would never know about, and bad things "can" happen. I don't want to get shot, even if I am "right" and it was all a mistake.