I know there are systems where the scooties will shut off if they get too far from the store.  You can make it to the handicapped parking, but no further.  Slowing the speed on store scoots should not be any inconvenience for someone who parks close. And yes, there have been lawsuits and reports.  (One of my favorites was on this very subvoat.  Fatty ran over a girls foot and shoved her into a wine display.  The store owner made the fat pay for the damages.)  This kind of crap happens all the time.