TSA with street clothes. Minutes before boarding I want to go in full Santa gear, including beard. There are no more ID checks after that. So will an airlines let Santa board?

I don't want to take off the beard, because if I am in costume it will be critical that I play the role 100%. That means I will be greeting families at the gate, handing out small gifts, etc. My act has to continue on the plane and after I arrive at SLC.