There's different versions out there depending who spoke to whom but given there weren't charges against him it's likely to be 50-50. You know, though, people make noise and people complain all the time, it doesn't need to end up in a scrap. My impression of him is that he's pretty aggressive and I imagine if he comes up against someone similar it can escalate. Probably doesn't help that he's quite handy with his fists so isn't likely to be scared and back down or try to make peace like a lot of people would.
That said, I bumped into him and Steve Chainel just after he won the purple(?) jersey in the Giro and he seemed like a nice enough guy and well liked at the bar we were at.