The thing about tracking cell phone is you don't need a vast network of spy cameras to do it. The cell companies sell all your telemetry data (where you've been as determined by your cell connections--almost as good as GPS) to ICE every month.

Plus your cell phone is basically a surveillance device; that's why android was developed by an advertising company: to gather information on you.

If you want to break free of that, you have to get an alternative version of the operating system (like Graphene aka GOS) and you have to get off every google service and application (gmail, contacts, calendar, sheets, docs, chrome). And then you might have a chance at privacy.