What if it can&#x27;t, <i>because it needs repair?</i><p>For that matter, what if there isn&#x27;t a manufacturer&#x27;s shop in my town?  I&#x27;m going to let my car drive itself to the next state and back, when it&#x27;s already in need of repair?  Um, no.  You may have less local auto repair shops, but not none.<p>Same with rest stops.  Over-the-road trucks won&#x27;t need them, but the majority of highway traffic is cars.  The people still need a restroom, even if they don&#x27;t need a rest stop for fatigue reasons.