There are other things they do like go down the center of the aisle and dont move to the right when opposing traffic nears. Its like they dont even see them coming.

The day I went it was noontime week day and there was not a single younger customer. Though I was done shopping I was creeped out enough to go back through aisles to double check. In this area at that time vaxed people didnt need to wear masks so I can assume they were vaxed. The only 'normal' people were younger cashier and girl at Rx counter (and myself not vaxed).