I know it doesn't make sense that they should be able to do it, I called the carrier beforehand and they told me that they do not even list over the phone and that I should list and check-in at the gate. I explained this to the TSA agent to no avail.
I try my best to not create waves at the airport as I'm in uniform and don't want to reflect poorly on my company; however, in future I will have to be less passive.