It wasn't closed. They are limiting the number of people so it can be cleaned after the lefty's lived in it for a week. They were simply limiting the number of protesters allowed in.
Do you believe that they should be allowed to camp there 24/7?
Judging by some of the people I've seen on TV, no showers, bare feet, etc. I'm guessing the building stinks to high heaven and needs a good scrubbing.
They should be able to protest during NORMAL BUSINESS HOURS only. Building should be vacated and locked at closing time. If they wish to come back the next day so be it.