In my native Australia, many supermarkets have click and collect. At Coles, one of them has parking bays and what happens is, you do your shopping online, and give a time for when you want it, then, you drive up and park in the nominated parking bay and enter your code and a staff member brings your order out to you in a trolley, and you take it and drive home.

I say, people shouldn't pass judgement on a person wearing a cap or sunglasses in a supermarket.