If the Chevy Bolt is left ‘on’ and the doors are locked and you walk away, after a period of time the Bolt automatically shuts itself off. In the process, it also unlocks the doors automatically.
My concern has nothing to do with charging the phone, and everything to do with unintentionally leaving the car on. If you leave an ICEV running, it simply eventually runs out of gas. But the doors remain locked. If you leave the Bolt running, it eventually shuts itself off to prevent you from using up your battery. And it “conveniently” unlocks all of your doors. I guess I don’t understand why you would want that “feature”.