That's not the pro's M.O.
They strike during * periods of transition * . At the gas pump , while loading & unloading passengers or "stuff" .
Yeah , l hear the people who live in the sticks where there aren't any other moving vehicles within a mile of you at anytime. But in urban and dense suburban areas , at multi pump gas stations w/ attached stores , fancy restraunt zones , big box stores etc , there are always cars moving slowly around you , and 3 or 4 guys riding together to get food on a break or whatever are common . Until they jump out with guns in hand before the getaway vehicle makes a full stop .
( And no there isn't a good response . Unless the baby is in the car seat , or grandma in the back , the goal is to back.away and get out of Dodge without a 3 way gunfight .)