The celebration doesn’t bother me, although he picked a horribly unsafe place to do it. But I agree with Gary — I’m bothered by the contact with the crew member from behind the tires. What if he ran the race 5 lbs. light and the guy slipped him weight. We keep crews separate until they clear the scales for a reason. I wouldn’t DQ him for the celebration, but I would sure encourage a discussion about doing so regarding the guy over the wall.