The road is not the only place where victims can get hurt by a motor vehicle. Crashes sometimes happen in parking lots, on sidewalks -- and even inside buildings, on occasion.
Any time a driver causes a wreck, there is a good chance someone else gets injured. This is certainly the case when people are inside a public building, such as a business. No one inside is likely expecting or prepared for the possibility of a car or truck suddenly crashing through the wall.