They could have first accumulate information about where you were and then make a location lookup later, this separatimg the visit from time. They could also ma

They could have first accumulate information about where you were and then make a location lookup later, this separatimg the visit from time. They could also make some decoy geo-location request. I dunno if they do, but if i was serious about it I would. Or maybe this being a frequent location for you they already cached the map tiles from that one time you opened the map while in the neighborhood. Or maybe they actually loaded all POIs in your home state at some point in the past. There aren’t that many out there.