Hey, I'm working on a website that documents Philadelphia's network infrastructure, and am also submitting the equivalent of freedom of information act requests to my local government to see if they'll tell me what surveillance equipment they use (results will be public), https://networksofphilly.org I highly recommend you do either of these things for your city if you can! :3
Networks of Philly
A rough field guide to network infrastructures.
networksofphilly.org