I watched the video again. Where do you see him pushing his way past the cops? I see the cops beating him across the room. My understanding is that a judge barred entry into the building by protesters, not legislators. Milroy was going in to get a change of clothes and was attacked before he could show his state ID.

Slow motion video:
See, we had different "understandings" of events that the video doesn't clear up since it doesn't show what happened prior. But one thing is clear that if you think this is Libya like behavior you've totally lost perspective.