How will you track every product a cashier touched while ringing up customers during a shift? Every product touched while restocking shelves? Every cart touched while collecting them from the parking lot? Will you sanitize the store nightly or weekly? Will you communicate when you do to customers? Will you communicate when the last confirmed case was in your store? How often are workers replacing PPE and is enough available to them (if critical medical staff can't get it, how will you?)? Or are they handling everyone's products and payment methods with the same set of gloves during their entire shift? All important questions.
At this point I assume everything I buy might have coronavirus sitting on the outside packaging. I wipe every item down with a soapy cloth after getting home, wash fruits with soap, reheat meats that are not completely sealed, etc.
I think everyone should be doing this, there's no way to track possible infection through the entire supply chain but since the virus dies after some time, inner packages are probably safe if they've been untouched for a while.