Wow, what an A-hole. I bet he was one of the cards almost hit in the rotary.. or he was about to enter it or whatever and it gave him a good scare, so he was pissed. But does he call for unit and just follow the guy till they show up? No, he goes full "I'm a cop and he's little people mode" - They guy could have run over him for behaving that way. -- Yes the driver deserves the citation for turning the wrong way.. it was stupid and careless, but this cop deserves to be booted off the force and loose his pension for dealing with the situation in this manner. But at the end of the video you could already see the thin blue line closing ranks.
Of course, we know nothing will happen to the cop - not even being demoted from detective. . . He isn't little people.