He was probably paid 50k to hold up the sign including bail money if arrested.
I say that jokingly because I knew a guy that streaked naked at a football game but he only did it after a signed agreement that he would be paid 3x any fines levied against him.
Anyways, I heard it was not a "fine". It was instead donations into a bitcoin wallet.
Another funny thing. I recently made a purchase at the pharmacy and I notice $10 dollar bill contained at the bottom words written by someone anonymous..."Bitcoins are the future".
Makes me wonder about how many people before me saw that $10 dollar bill and how many after me will see it.