Does this store have anything dealing with the augmented reality things MS is doing? Where would I go to see that?

Yes, the store has plenty of Virtual and Mixed reality headsets, it has Oculus, Vive, Samsung and HP, even Hololens, you can try all of them

Don't know current status. When I was there a year ago, you could sign up for a tour of the store, which included trying out their augmented reality device HoloLens, amongst other things.

You can try some of the VR headsets.

Yes, they have. better to call before go there if you are looking for specific item.

They have virtual reality headsets available for you to try out. Augmented reality might be applicable if the hardware they have on display supports it. Best bet would be to call the store.