I don't know what it is like everywhere but here in SW Fla the inspectors barely have time to sign the permits. They certainly don't have time to properly evaluate a non-listed piece of equipment. When I was a state inspector I did have all the time I needed and a I did get a chance to approve things that weren't strictly "code". My policy was I had to see the hazard before I would fail something. In most cases the code really makes sense.
