Unvaxxed aren't supposed to be maskless yet here.
But playing devil's advocate, there's very little risk catching it from unvaxxed either going forward. It was different even a month ago. But like 3/4ths of adults are vaxxed here. Basically, if you wanted one, you have been able to get one for a while now. A vaxxed person has almost nothing to fear being in a grocery store with an unvaxxed person.