I saw the same thing at the end of that game and being a bronco alum (hence SCBroncos) I immediately shouted T HIM UP!!!!
Now, away from my partiality, since the officials were still on the confines of the court, they do still have jurisdiction. There is no way, however, that I would ever "allow" myself to "see" this happening. I would be sure my back was turned and I was high tailing it out of there...it might be different if the player was trying to taunt or show major disrespect for the other team, but in this case, I think the kid was just really excited - and he should have been becuase the Broncos had that game and blew it...it must have been the refs fault...