Just do like toyota, have the car call home for subscription status and disable if the network etc is down [1]. [1] https://www.thedrive.com/news/43329/toyota-

Just do like toyota, have the car call home for subscription status and disable if the network etc is down [1]. [1] https://www.thedrive.com/news/43329/toyota-made-its-key-fob-remote-start-into-a-subscription-service https://www.thedrive.com/news/43329/toyota-made-its-key-fob-...