No abuse. He's "keeping the peace", as per his obligation to other citizens on the road.
As has been mentioned, there are plenty of states where it's indicated to be illegal to travel in the passing lane on a multi-lane highway and not be PASSING. If this video was shot in a state with such a law, little civic just got a lucky break.
Let's just enjoy the hilarity of a clueless driver getting his/her just deserts and save the abuse of authority conversation for later.
