Electric Glide in Blue..
At the end where the Cycle cop traffic stops the people not knowing they are bad guys.
Lets them off with a warning, and when they pull away he realizes they forgot their DL.
Cop takes off after them to give it back, and they freak and whip out a shotgun..
He is blown off of his Harley at like 60 MPH right thru the windscreen and into his chest throwing him off the bike onto the highway..