
Quoting
cdwjava
I'm very surprised that they might have provided you as much info as they did regarding the process of any internal investigation, most pointedly that he had been "relieved of duty". Such a comment is arguably in violation of state law if it was disciplinary. If merely administrative (paid) leave while they look into the matter, that's not so problematic.
You can consult attorneys who might specialize in this sort of thing or the ACLU. If they are willing to take the case on contingency (and i don't see anything that tells me they will) then maybe you can move forward with some sort of lawsuit. If you have a lot of money to throw at the situation, you can also toss down $20,000+ and see where that gets you. Without actual harm or losses, it might be hard to get an attorney interested in the case. But, maybe ...
When I was a deputy (NOT in LA County) we had some people filming the back entry to the jail. It turned out that they were part of a hit squad planning a violent release of a notorious federal prisoner being held at the county jail at that time. So, yeah, recording what can be seen as the comings and goings, schedules, and activities of law enforcement at a station or facility is likely to get you attention. But, you knew that going in, didn't you?