Free software schools / college in NYC metro area?

How about non-profit free software, publicly accessible computer labs in the continental U.S.? Libraries? Community centers?

I don't know about that, but if you want to make a positive change, get inside one of these schools and start working with them to gradually remove proprietary software from the curriculum. If you just shop around for schools that are already fixed of just don't have the problem, that prevents you from having any sort of influence on it and makes you an outsider.