I'd bet making him wait was part of the interview. Maybe it was one of the big issues internally, and they're looking for someone to be able to tighten things up without causing more issues from the offended classes.
Someone should design a virtually silent little remote controlled car (I mean size of a matchbox) that could cruise around the office area listening to what people are talking about, transcribed to your cell phone. It would be great to finally get in to the actual interview, totally ahead of their game, while your stealth car-ita automatically finds its way out of the building to a predetermined secret hiding place. Yes, another million-dollar idea given to you all for free!