Re: Oh, yes, contractor installs..
I'm guessing what this "interesting" place was, so I assume the had pretty rigid physical access control to the site
Oh yes. You can't just walk in there. I don't think you'd even actually make it to the front door before they'd nab you, and even with authorisation you will be escorted and eyeballed for the entire duration of your presence, which in my opinion 100% as it should be.
Personally, I don't have a problem with 100% supervision and auditing of the work I do, because it pretty much removes the chance of being accused of something I didn't do. This is also the basis on which I audit, and it removes a lot of the psychological friction you otherwise get.
Audting to find fault is easy, any moron or consultant (but I repeat myself) can do that. Audting to improve things is harder, as it requires actual deep insight in and knowledge of what you audit, but it is in my opinion much more interesting than the former.
And I can charge more :).