My wife is traveling from DAL to LAX tomorrow. I messed up on the time to check her in and she got a C boarding pass. I recently upgraded my Chase Southwest card to the Priority Card. However the card is in my possession and I'm not with her. Any ideas of how I can use one of my 4 "buy-ups to a better boarding position" for this? I could try having the gate agent take the card over the phone. Any other suggestions?