A woman left a comment on Facebook criticizing the Mayor of Miami Beach. The Mayor of Miami Beach then sent the cops

[dickthegrouch]

5. All 911 calls are recorded

Perhaps we can reign in some of this kind of egregious behavior by calling 911 and having them record the interaction. It won't be video, but it is an official (presumably immutable) recording.
A list of possible offences that the caller could cite against the cop, ICE agent, thug, or whomever at the door might include telling the dispatcher something along the lines of:

There's a (group of) armed person(s) at my door demanding entry, and to be allowed to look at my phone, social media, identity papers...
He has been asked for a search warrant, or a probable cause for their demands, and have failed to articulate or produce any such thing.
Several of them have their hands on, and are brandishing, their weapons.
They are attempting to force their way into my house (apartment, office, shop) without my consent.
I demand that they be arrested for initimidation, brandishing a weapon, trespass, harassment, attempted abduction under the color of authority, and violating my first and fourth amenedment rights a US citizen.
I demand a police response and investigation of the identites and authorization agency for these invaders. This call will be made a part of any civil or criminal case whether I become a defendant or a plaintiff, and may not be deleted, tampered with, or otherwise compromised.

(I am not an attorney. But it seems to me that "documentation" and attempting to create accountability for fascists is a defendable tactic. They are known to hightail it out of the situation when challenged appropriately.)

Of course some PDs may not respond, but that failure will be on them, eventually, too.