The government has the power to force phone companies to cough up who was at a particular address at a particular time and where that phone is now. In addition, most states now have laser scanners reading license plates. In many areas your plate is probably scanned a couple of times in any given day. The idea you can carry a phone and steal a car and go on some Hollywood girl-power* adventure is dated, to say the least.
* I’m thinking of “Thelma and Louise.” But it could be “Damon and Katoche.”