Signals with your mobile signatures are routed at nearest cellullar towers whenever your mobile is turned on, and has nothing to do with "location data" on your phone (ie. GPS, network endpoints, etc.). The only opt-out is turning mobile OFF, preferably remove battery. If you can send/receieve calls and SMS, your data is transmitted and location determined near real-time.
Information is POWER, my late teacher used to say.
Or get a temporary phone/sim cards off those stands Jason Bourne style. But now even those temp. phones/sim cards, you have to provide ID's so you would have to provide fake ID's. Damn it!! The government always makes me become a criminal!! There is just no way around creating fake ID's.