Oh god, this reminds me of when I was trying to jumpseat in uniform at MKE. I had gotten listed at the ticket counter and the boarding pass she printed up for me, has SSSS on it.
So I get in line (not sure if there was even a flight crew line then) and before the x-ray, they put me into this penalty box off to the side until they can actually search me. I sat there, and sat there. They just said they did not have time to get to me yet, and I told them I am just about to miss the flight I am listed on.
They TSA agent either did not care or did not understand what I am talking about. I told them I have now missed the flight I was listed for, and I need to go back and try and get listed. They told me I could not leave, until one of them could escort me back down, or until I was searched. So I missed my flight, and now I had to wait to leave the box, they had no one available to clear me through, and no one available to escort me back down.
Finally, a supervisor is around and I tell them what happened, and at least they let me leave their little SSSS penalty box so i can go back down and look for a flight again.
In hindsight, I could have probably not gotten listed at the ticket counter and gone right through security line, but was my first time to jumpseat again post 9/11 (this was 2005) and thought I needed something like a boarding pass or ticket to get through the security lines, when the ID probably would have been fine.
It was just still maddening to be stuck in their SSSS jail while I miss a flight, and then I cant get out of that jail to get listed onto another flight.