Having used cars that had that "supervised" driving feature.... Gosh, I hope you were paying 100% attention the whole time of that driving experience you described. Even the smart cruise control features I've used allowed my mind to drift, and I was glad for the beeping from the steering wheel telling me to pay attention. I don't use those features anymore.

If it's full self driving, then I assume that Tesla is paying for your insurance and taking all responsibility for any crashes it causes in your car?