Isn't FOIA something that applies only to federal agencies? Many states also have similar "sunshine laws", but I didn't think there was a nationwide mandate for all governments at all levels.
Every state has their own public records law that allows for requests similar to FOIA.
I worked briefly in a state agency and I recall during a presentation of an application we developed, my boss noting t hat the users should be careful what they enter into certain fields due to FOIA.