Being from the Frozen North, I'm not sure what applicability the Constitution has to do with autonomous operation of motor vehicles. Maybe they missed in writing that part.
Are you going to be forced to purchase one? I doubt it for the next 20 years.
I think what we're seeing here is a very early technology and I suspect what we will see in 20 years will make the self-parking car look like a middle school science project.
I admit that I, who am seldom comfortable in a vehicle operated by anyone else, am not a prime candidate for an AOMV. But I also suspect you have witnessed vehicle operation which left you wishing a machine was keeping that other car in the lane while some rectal oriface wrestled with his breakfast sandwich.
I believe we will see the first applications dedicated to simple tasks such as guiding the car along a multi lane highway until a pre-determined exit is reached. The tech exists (has existed for 20 years) to do this. Slower car in front? There exists programming to check the passing lane and accellerate around the slower car if conditions allow. following distance? Its there.
As for the reliability of sensors, I recall hearing the same predicitions of doom when electronic sensors were first placed on engines, transmissions, differentials and wheels. They seem to work just fine. I suspect any manufacturer who produces an AOMV will make darned sure any failure of any component means the human operator will be accepting the chores. (Hope he/she's awake!
)
Best
Les