Ran into a guy a few weeks back wearing an Occupy Mars T-shirt and asked him if he worked for SpaceX. Turns out he was a machinist at the McGregor facility. I shook his hand and thanked him for keeping the dream alive. He protested saying he was just a machinist and I told him that every job mattered in building rockets.
I actually tried to visit the McGregor facility a few years ago on a road trip back from Denver. They had just installed the new guard shack at the entrance and they turned me away. Apparently you can schedule a tour in advance but I haven’t figured out how to do that yet. I suspect they have the occasional “open house” for the local residents of McGregor.