Watch the video. They did nothing wrong...and in fact, the parade attendees were much more disorderly than the people arrested.
Nothing was done to anyone except the christians. They were not loud (you couldn't hear them over the parade people) and they were not violent. They moved when requested, but eventually balked at being told to go one way down a public street when they wanted to walk in the other direction.
Meanwhile, the police on scene ignored parage attendees linking arms and blocking public sidewalks - clearly a violation of law occurring in the presence of the officers which allows them to make an on-view arrest without a warrant.
The case stinks to high heaven on a number of levels. The fact that the content of the speech is the criteria for a number of the charges is particulary offensive from a constitutional perspective.
225: Well said.