Many cities have removed cameras before their contract was up (though that didn’t stop Flock from putting them back up in Evanston!). You can also target the next time the contract is up for renewal - gathering community support takes time anyway. You can focus on removing some or all cameras, or on the contract language (ACLU has a good resource on this that I can’t find right now). Municipalities should care about the liability they’re being exposed to - some states like Illinois have laws against sharing data with the federal government, and there’s a federal case going through the courts now.