It happened to me
I was trying to jumpseat home on JetBlue out of JFK. The ticket counter was slammed and one of the JB reps asked if I would just go to the customer service counter in the sterile area.
So the TSA stops me and states that I can't go beyond the check point even though I'm in uniform with my badge because I don't fly for JB.
Fortunately for me, there was a JB employee and computer right next to the check point. She heard the issue and just printed me a seat request right there on the spot.
THOSE ARE YOUR TAX DOLLARS AT WORK FOLKS!