I had to go check pictures to see what was there, (since they just had the 14-50 last time I was there) and I know what that is now. From the body of it, I though it was just a Clipper Creek unit, but it does have the Tesla logo on it. It is a converted wall charging unit for the old original Tesla Roadster from 2008-2010ish. I think those were actually built from Tesla buying base units from Clipper Creek and modifying them with the custom Roadster charging plug and putting their logo on them. Here is a picture of what these looked like with the Roadster plug on it:
Tesla Roadster Charging at the Westin Annapolis | PlugInSites
Since the Roadsters started getting rarer, and the J1772 plug is more compatible, most of those old Roadster wall connectors started getting cord-swapped by their owners to convert them to just regular J1772 wall connectors, and that's what this one is too. But with this situation in Burns specifically, I don't think Tesla the company had anything to do with this. I think this was just an owner that gave this to the C of C to install.