Riggen gets even more annoyed at the sensitivity remark, explaining that he hasn't stopped anyone in 12 years for giving him the finger.
He also called it "unusual behavior," suggesting that Bombard was looking to get the attention of a trooper by giving off that "negative signal."
The two keep arguing about it with Bombard, at one point, asking what crime was committed if he had extended his middle finger. Riggen doesn't exactly say, leading Bombard to threaten to file a complaint against him.
Riggen eventually climbs back into his patrol car and follows Bombard's vehicle down the street, while still steaming from their squabble.
Inside the patrol car, Riggen can be heard saying Bombard called him an "a**hole" and told him "f**k you" as he walked away. The trooper then turns on his lights and sirens, announcing that he's arresting Bombard for disorderly conduct.