I wouldn't drive your car 10 feet that way , but I would put the car in in neutral and consider the demolished engine a blessing and just hope the flywheel didn't explode through the floorboards , before I would let a defective accelerator cause me to crash and kill my family and those in the other cars ..
Hold the gas to the floor and the engine sputters and sounds awful. It turns off the fuel injectors to limit
the RPM.
How about just turn off the ignition? You don't have to turn the key far enough to lock the steering.