That Walmart is where Electrify America plans to put it's chargers in Novi. And, while Tesla has in a few instances placed superchargers at Walmarts, it's still pretty rare for them to put them there. As opposed to EA where the vast majority of their installations are at Walmarts. So, the default assumption should be that what you saw is for EA. If it ends up turning out otherwise, that will be a nice surprise for Tesla owners/drivers. Thumbs up for keeping your eyes open, though.