On the face of it, it sounds pretty damning. That said, we’re dealing with Blanco here. Is it possible that he just chucked his shirt into the locker room in plain sight just to attempt to get Marrufo in trouble? A simple way to find that out is to find out whether Marrufo kept the jersey. If he just tossed it right back out or gave it to Fire or Crew officials, than he’s clearly off the hook. But if Marrufo still has possession of that shirt, I think a long suspension should be in order.
Of course, hurting Marrufo’s case even more here (and damaging my dastardly-Blanco theory, as well) is the penalty call that went in favor of the fire.