Well, if you had trucks that were safe enough to sleep in while they auto-drove, the companies would certainly want to go one better and have them drive empty.

Well, if you had trucks that were safe enough to sleep in while they auto-drove, the companies would certainly want to go one better and have them drive empty. They could create dedicated fueling and loading areas if need-be. But the trucks being that safe is the big question. The article describes a single trip without disengagement. Much more that is clearly needed.