Carl's Jr. has several workers and a manager right there to restart the grill and get it working again.
These coners are exploiting a simple hack that would ordinarily be nothing but a minor nuisance to a human driver, but it turns into a showstopper for an SDC, because there is no responsible human for dozens of miles around. It disables the car for an inordinate period of time without a realistic mitigation. It's genius!