The wife and I went to a store this week and they just posted a sign which states all customers have to wear masks (also no kids under 16 and no pets, even service animals). If you don't have one you could purchase one for $1 at the service desk. Well, while I respect their store policies and their right to do what they want on their property, I exercised my right to shop somewhere else, and we did...
Wearing a mask is not a law. Allowing a service animal is, first time they deny a service animal they will find out the hard way.