I couldn't tell but I'm guessing the light was red and dude saw the LEO and stopped in the middle of the intersection while the rider (was it you?) decided to keep on going?
Lucky the cop didn't stop and wait for the motorcycle to give him a ticket. I'd be playing the lottery after that.
Object fixation going on there by both?? When approaching intersections, I try to never get behind a vehicle just for that reason...especially when you open lanes on either side.