I'm no fan of Tesla, but they area hardly unique in having a car with an embedded cellular modem that is in constant communication back to the mothership. Indeed I challenge you to find ANY car for sale today that isn't automatically tethered to it's manufacturer. It's also why I have zero desire to change any of my older cars for something "better". I wish I could find a site that would catalog which cars out there can have their embedded cellular modems disabled and not freakout/threaten to stop working.