It's been pointed out that to shut down your car when it's moving you have to hold the button down for three seconds. Many people don't realize this because they don't read the manual. In other words, anything you do has to be with the approval of your car's computer.
Thanks for that reminder. It may be important to someone on this thread in the future.
If your accelerator becomes stuck, you should:
1. Shift to neutral.( In drive by wire vehicles with automatic transmissions the gear selector lever is nothing more than a switch and this may not shift the transmission to neutral with a computer malfunction)
2. Apply the brakes.
3. Keep your eyes on the road.
4. Look for a way out.
5. Warn other drivers by honking and flashing your emergency lights.
6. Try to drive the car safely off the road.
7. When you no longer need to change direction and have stopped, turn off the ignition. (Turning off the key locks the steering wheel of many vehicles.)(Also in vehicle with push button start or auto sequence starting where you turn and release the key, the engine may not shut off during a computer malfuncion)
Modern drive by wire vehicles actually need to have emegency shutdown switches that disconnect the battery and the alternator from suppling electricity to the vehicle in an emergency.