Is it not perfectly fine to fire people who think it's OK to come into an office and disrupt work for 9 hours and force law enforcement to be called. I can't think of a single place that wouldn't sack me on the spot for doing that.
I'm not fully aware of us protest laws but i was under the impression to protest you had to do it on public property. Seems like this is blown out of proportion because the writer agrees with the cause.