All in all, I'm actually really happy that I had this experience. Yes, I was a walking zombie for a few days...but that was easy enough to fix after sleeping for 12 hours (last night). Technically this wasn't my first professional audition (since I auditioned for RPO once as an undergrad) but it really was the first time I had actually really practiced the rep and gone into an audition really knowing what I was doing and feeling pretty confident about my playing. I may not have advanced, but I know that I could have played well enough to and I just need to take more auditions to figure out how to let myself play better under that (very specific) kind of pressure. And after this craziness I know that it can't get much worse than what I had to go through (well, maybe it can) and I can only look forward to better audition experiences in the future. I hope?
At least I can look forward to never flying airtran again.