Little piece of Tandy errata: They had their own subway line in downtown Fort Worth[1]. It was there before they built their headquarters, The Tandy Center, but they kept it running and it terminated in a parking lot that also had a little farmers market that my family used to sell watermelons at when I was a kid in the early 90s. If we sold all of the melons early we would take the train into the Tandy Center for the fun of it.
https://en.wikipedia.org/wiki/Tandy_Center_Subway