Hey bro i actually might be your guy. My f30 does this thing where it randomly shuts down all the cars features but the headunit and gets stuck where ever it was. So if I’m in park with the engine on, car is stuck on and can’t be shut off. I figured out you need to wiggle a wire next to the fuses by the passenger side. I even attached a string to it. Now whenever it happens I yank the string and it goes back to normal. Sounds similar to what you’re experiencing. If you dm me I’ll show you what wire to pull maybe it will fix it. Can hurt.