Hmmm. So #12 is in Ohio and rocks but is NOT at the R&R HOF. #1 is in Nevada, has power, maybe near the Hoover Dam, sees flashing lights & levers pulled and in a desert, but it is not at the Sahara Casino.
Either the phones are not yet planted (doubtful), the clues are still too vague (probable), or we are dead on and they just weren't looked for in the correct spots at these locations (possible). I doubt the average employee will have any ideas what we are asking about, but someone at the venue MUST know in case they see people snooping around so we don't get arrested. Let's get the next clue for #3 in CA and see where it leads us!