My wife today needed to get out of the car, (with the key fob in her pocket) to remove a cone on an EV parking spot, to allow her to park on and charge up at. She wasn't far enough away for the doors to auto lock. However she she had two young children strapped into the rear of the car, and she was at a busy part of the city. She asked me if someone could have jumped in the car and drove off with the kids in while she was moving the cone. I guessed that the car would shut down if it got to far away from the fob eg over about 25 foot away, but as I'm not sure I thought I would ask here for an answer and any advice.