are you sure? If you walk away from the car with it running, I assumed the double beep triggered to tell you it was locking but motor was on, I do note the the mirrors don't fold however. But if you have the fob, it would have to lock. I need to try this next time as I leave it running frequently .I exited my ME one time with the FOB forgetting to turn it off. The horn beeped to remind me but also would not let me lock the vehicle. Perhaps you can lock it from the Ford Pass app. I haven’t tried it.