It was hot - not only were all us pregnant people there, but there were a good number of kids (unavoidable) and support folks (mom and husband-looking types, mostly). On the one hand, those of us who came solo were wishing the guys would all go downstairs so we had more air. On the other hand, when the woman in front of me fainted (!), I'm glad her guy was there to catch her.
I was getting nervous when I got near the front of the line - they'd previously been letting people in 10-20 at a time, and now it was more like 5-8. Sure enough - I was second from the front when they announced that they had 30 doses left. Whew!
(I checked - the lady ahead of me who fainted, who was seen promptly by nurses, did get her shot.)