I think it will:

A.) Be at least another 10 years before they are in Wide Spread Use (more than 50% of the trucks on the road)
B.) Will require a HUMAN DRIVER in the vehicle AT ALL TIMES per STATE/FEDERAL LAW
C.) Will ultimately end the SHORTAGE OF TRUCK DRIVERS, make the roads SAFER, lead to HIGHER EARNINGS for human truck drivers and LOWERS COSTS OF CONSUMER GOODS.