^^^ Yeah.. And what will the cops do about 35 people filming? - We should adopt a firm policy of everyone packing cams.You should know the score with corrupt cops and creepy cultists by now.
Multiple cameras and mutual support.
A mobile phone set to 'record movie' and then held to your ear allows you to face 'away' from the crime... while you unobtrusively film everything. Just say "uh-huh?" from time to time, and you're the perfect innocent bystander.
A modern digital voice memo recorder is tiny, unobtrusive and cheap. Everyone should have one. Start a recording going BEFORE it gets creepy, and clip it to your belt, or under your lapel. You will have several hours of recording time, so just always have it running. Wouldn't a soundtrack of that police harassment be just the icing on the cake?
Scratch something distinctive on all your electronics and keep a photo of you and it at home, to ensure that your camera or recording device doesn't "disappear" during searches or detention by questionable cops.
Always assume good faith, and try to remain polite with the police. Also, say as little as humanly possible. You don't need to explain yourself or defend yourself. You're entitled to your day in court, where you'll do a better job of it, with a cool head and some professional legal help. So say NOTHING if at all possible, and let them gather the rope to hang themselves.
Even in Clearwater (and to a lesser extent, Hollywood) where so many police appear to have been compromised, there are some good guys. I hope you won't assume from this that I'm anti-police. They have a very difficult job to do. It's just a shame that they will always tend to go for the short-term gain of "keeping the peace" rather than the long-term gain of ending the abuses of Hubbardism.