Good example why off duty police officer should not be allowed to stop/ hinder another vehicle for traffic violations.
What is most concerning on the video it seems that the officer either lied about having a passenger or displaying an offensive gesture out the passenger side window. If the officer lied about it on camera and in uniform, would he lied to the court?
There's proof of him making a left turn from the right shoulder at the intersection in the video. If he can hand out a ticket after the fact, he should be getting a ticket for improper turn, too.