I don’t buy it. Not because all Bills fans are saints, but because Occam's razor.
The most important part of the story is that it supposedly happened with 10 minutes left in the game. That is when the Fire Tomlin chants started, Renegade failed, and all the Steelers fans got a jump on traffic.
Besides, the most Bills Mafia thing to do would be to return it, and start a donation fund that we’d all pile onto.