Yep, us (ex)Austin residents get over any "creepiness" factor real quick. Bat Conservation International had done a really good job of positive PR outreach for the bats.
Those Congress Ave bats are super tiny anyway. I remember standing in a group of trees above Town Lake one evening and weather conditions were such that a stream of bats flew right through me. They'd be coming right towards my head and then swerve around me at the last minute. Pretty wild!! It was too cool not to just stand there and let it happen.
I've only worried about rabies for any that are on the ground - i.e. sick. Not too worried about the flying ones. Of course if one actually landed on me and took a bite I would feel differently.....
Some bat cave in west central TX (Frio Bat Cave? - near Concan) - watched 10 million emerge one evening. Have awesome video of it.