If you had a self-driving car, you could let it take you to the beginning of the hike, and then let it drive itself to the end of the hike where you could take it home.
As an outdoorsman this is exactly what I am excited about with self driving cars. It has the possibility of making going even deeper into the wilderness more practical. A self driving car can take you to the trail head, go charge, and then go wait for you. With 300 miles of range you can go most anywhere.