I've posted here before about this, but: we did a give-to-get in my local municipality. The police (and voters), concerned about a wave of carjackings, wanted a Flock deployment. Activists opposed the cameras. There was a board fight, which came down to a tie-breaking vote from the board president.
In exchange for a pilot deployment of Flock, we ultimately:
* Disabled automatic sharing of Flock data to out-of-state entities (I tried getting sharing disabled altogether, but we solved a murder with shared access to another muni's cameras)
* Revised the police department's General Order regarding ALPR cameras to get a bunch of privacy/security stuff added (mandatory 2FA, use exclusively from PD computers, monthly audits of Flock stops, etc). The General Order we approved also forbade the use of Flock cameras for non-violent crimes.
* Got the ACLU's CCOPS model ordinance enacted, which mandates board approval of any new surveillance technology --- we're the first muni in Illinois to do that (put us on your silly maps, ACLU!), and, finally
* Forbade the police department from using Flock to stop "stolen" cars (the Illinois "hot list" of stolen cars is surprisingly bad, with months sometime passing after cars reported stolen being removed when it turned out they weren't); we instead monitor for stolen license plates (for which there are no innocent explanations).
None of this is perfect. The activists certainly aren't happy! On the other hand, we probably have the most tightly restricted ALPR deployment in the country, and we were up against an electorate that, if it had to choose between no cameras and 5x as many cameras with zero restrictions, would have sided with the cameras. So I'm calling it a huge win.