The same people are harvesting and packaging the food on the grocery store shelves. Frankly if I worked at a walmart I would be terrified of the people who come in.
I didn't see a choice for "be more careful with what you order". I think it might have a lot to do with that, and I'm staying away from buffets and salad bars. My "social distancing strategy" is to stay away from other people whenever possible, same as always.