Accepting such a giant restriction ('not allowed' implies no override) would mean you are at the mercy of whoever controls the self-driving cars. They can kidna

Accepting such a giant restriction ('not allowed' implies no override) would mean you are at the mercy of whoever controls the self-driving cars. They can kidnap you any time you enter a car, or prevent you from using your car to escape, or just subtly make your life very difficult. Historically, people that allowed themselves to completely fall into someone else's hands have not fared well. The words 'slavery' and 'genocide' tend to come up when describing their fate.