I'll nominate Hambone's pit stop and Cole Pearn's tweet about... #redneckjesus V2.0. From his position as reigning champion and still a dominate team, Cole Pearn continues to act like a prick, needlessly insulting a competitor and many Nascar fans, again.
As for the 22 and Todd Gordon ordering the car to the garage... no harm, no foul. I don't believe the team could have replaced the oil cooler in the pits within the 5-minute crash clock and returned to the race. Their day was done either way, I strongly suspect. (It's still surprising that Gordon would not know the rules for that situation, if that is what actually happened.)