Interesting. I grew up in NYC, so obviously, everything shut down. We were kept at school (high school), but they gave up on teaching before noon, and everyone needed to be picked up by an adult (which was frustrating for me because I lived two blocks away).

I live in Massachusetts now, and most people recount something similar; not as severe, but school was let out early and their parents left work early. Maybe it was because some of the hijackers left from Logan.