That's what I was just thinking. You could potentially have autonomous geofencing. You enter your destination into the satnav and then start driving; when you g

That's what I was just thinking. You could potentially have autonomous geofencing. You enter your destination into the satnav and then start driving; when you get to a geofenced highway that is considered "AI safe" the car will give you a signal. At that point, if you wish you can set the car to autonomous mode and your seat will automatically move back a bit and tilt back so you can relax; maybe even take a nap (not sure about that though). When you are about 10 minutes away from exiting the geofenced section the car will return your seat to the normal driving position and sound an alarm so you have time to get your brain back into gear and take over control again.