This photo, taken with an Iphone on my way to a deposition, is far from ideal, and was intended to be of the Rock Springs City Hall. It's also included on our Courthouses of the West blog. But, more or less coincidentally, the sign for Wyoming Automotive Company can be seen on the building next to the city hall.
I don't know about this particular Wyoming Automotive, and the sign is barely depicted because the trees in the photograph obscure it, but the Wyoming Automotive in Casper was an automobile parts store, and I suspect that this one was or is.