If the ref sees a 2nd penalty he/she throws his hat, not sure what piece of clothing they throw if they see 3 penalties.
I expected after that return at least half the refs to be running around naked on the field. I still cant believe there was no flag. Still, this evening I'm waiting for a flag...while watching the Doug Jones senate Victory speech in 'Bama, I was waiting for a gold bar to appear in the lower right of the TV.