Another option is this: Club Workshop. I have a friend who works there, and they often have car clubs come in for work days. They normally charge $40 for a day pass, which includes access to all the machines there -- you could make you own window clips, if you were so inclined. He might consider a break, though, if we just want to use a bay or two.

With a fully-stocked workshop, I might also take the time to install the tow hitch, too...