I didn't try. I assumed that the lack of transformer was enough to assume they weren't working. Also, there were people there working on the signage.
I can't state a specific example off the top of my head, but I'm pretty sure there have been plenty of unfenced but not working Superchargers in the past. These are all installed by different contractors, and I suspect they have different processes between them.
Someone posted on the MN Tesla Club Facebook page that these Superchargers are live. But it sounds like that was perhaps based on seeing a Tesla car there & not based on personally verifying operation.
Not operational. Same observation as vikingrob. Looks like there is a spot for a transformer but they have a bunch of junk piled there and I could not tell if concrete was even poured. Seems to be a week for two out.
Yeah, that's the blue tarp in the foreground of my last picture. I think they ran conduit to where the transformer will be, but covered it with the tarp so that the conduit doesn't fill with rainwater.