It must be so hard being the biggest online retailer in the West when literally every brick and mortar shuts in one go. These things are minor, everyone is still ordering from amazon by default. Coronavirus is more like a wet dream for Bezos than a challenge.
All you have to do is sell food to stay open. Sometimes not even that. Most of the big box retailers added grocery in the last couple of decades. Even office max was open a few days ago when I needed some shipping supplies.
I'm in Santa Clara county, CA. Where it first started and the first restrictions were put in place (a short walk from the first case in a hospital in the US). I can imagine that there are a few places stricter, but I haven't heard of any of the traditional big box stores closing (at least any of them which would have a banana for sale).
Most places also deliver, useful particularly now. I needed some office supplies recently and amazon was showing delivery more than a month away. I tried office max and they had it in stock for free overnight delivery.
Many of them are starting to feel the strain now though; normally you can order delivery from Home Depot stores, they have moved to a $45 minimum for that service.