Self-driving cars now supposedly work without human backup drivers. In practice, they work poorly. In addition, they are full of cameras inside and out, and the company staff (remote) can look at the camera feed at any time.

It should be illegal to operate a car with such surveillance capability without a warrant to authorize the surveillance.

In order for a self-driving car to be tolerated in society, its sensors must not pick up enough data about the passengers, or the passers-by, to figure out who they were. However, that limited amount of data needs to suffice to figure out where they are and where they might be in n seconds.