I think a thicker padded car cover would be better, something akin to grill covers with a half inch padded lining. You can have them color coded for the type of

I think a thicker padded car cover would be better, something akin to grill covers with a half inch padded lining. You can have them color coded for the type of vehicle. Grey for sedan, black for pickup truck, dark blue for minivan/hatchbacks. When a storm is coming they can just roll them out in a shopping cart and throw them on car by car. You can start a day or two before, covering about 80% of the cars (the ones that are less popular) so you can still be open and selling, and then the day of/before you cover the rest.