Sure, and of course my phone company knows which cell tower I'm using. Starbucks knows where the device with a certain MAC address that signs in with my account

Sure, and of course my phone company knows which cell tower I'm using. Starbucks knows where the device with a certain MAC address that signs in with my account has been. That's not the point, though - the question is, will the government has easy access to that data and will they use it for anything and everything?