Yeah, that was Las Vegas (my hometown, and my I never call it "home" again). Frankly, staged or not, I'm shocked that Metro didn't come down on his head in no time flat; downtown, you're never much farther away from a bike cop than a block or so, especially in that area, less if you're around the courthouse (from which they are about five or so miles, by my estimation). I do remember there being a huge fuss about those reprehensible "bum fights" that some enterprising degenerate commissioned, and this very well could be the handy work of that gentleman or another, similarly morally destitute individual. If that were indeed the case, I would not be at all shocked if the driver of that car were not in on it.
Oh yeah: there's no reason to believe that if someone is destroying your car--with you in it--that he will stop at the car. In fact, there would be plenty of reason to believe that he was trying to get into the car so that he could harm you. On those grounds, I would think someone would probably be vindicated in shooting, especially given the severe damage that was done to the car providing good evidence on behalf of the shooter.
However, there's a whole lot of people in not too much space there, all crammed together like people tend to do when they want to get as close as humanly possible to the intersection during rush hour. A miss could have grievous consequences. But that's the kind of thing to think about when we play armchair quarterback, not when something like that is actually going down. Either way, I'm just glad nothing like that has happened to me or anyone I know; that would be the pits.