I don't think the car tells the user whether it can handle the road or not. It just sends alerts when it needs help. Humans are the guinea pig for Tesla. The

I don't think the car tells the user whether it can handle the road or not. It just sends alerts when it needs help. Humans are the guinea pig for Tesla. They want this data of their system driving outside its normal bounds. Otherwise yes Tesla would disable autopilot on unapproved roads.