If you don't mind me asking, what issues are you having at the airport? When I first seen airport, I assumed it was anxiety about being on a plane. But I seen that you mentioned that the alcohol was for social anxiety.
Also, this is my experience with Ativan, but I personally find the sublingual Ativan to be weaker than the regular tablets. I find 1mg sublingual is more like .5mg of a regular tablet.
Even though I have nothing to hide from them, I feel really anxious in airport security. Everything from looking at the security entrance, to picking a lane, grabbing a bin, putting my stuff in it, waiting for my turn to walk through the metal detector, waiting for my stuff to come through the x-ray machine, taking my stuff and walking away.
I feel like everyone is looking at me. Not just the security agent ahead of me, but the 'random checker' who brings you aside, the security agents from the other lanes, the cameras in the ceiling (those are there to view your body temperature). Plus now many airports have behavior detection officers - their sole job is to see if you look nervous, which could indicate you're a terrorist. Which sucks for SA sufferers who aren't terrorists.
Someone's always watching you (even if it's just 1 person) in airport security. Watching your behavior. They're looking for nervousness.
I've been pulled aside before (whether for nervousness or random check) and it's embarrassing. I feel like passengers behind me are looking at me when it's being done. The attention is on me.
PLUS once I'm in the security zone I can't leave. No escape route.
The strange thing is I never had this problem when I was in high school. It's only when I started living alone and losing confidence in general that I had problems with airport security.