Here's that policy:
http://www.fairfield.lib.oh.us/privacy.php
Privacy Policy
Citizens using the public library have the right to expect privacy with regard to information sought or received and materials consulted, borrowed or requested.
In accordance with HB 389, Confidentiality Legislation, effective October 3, 2000, library records and patron information are confidential. However, library records or patron information will be released in the following situations:
1. parents, guardians and custodians will have access to their minor children's records;
2. in accordance with a subpoena, search warrant, or other court order, or to a law enforcement officer who is investigating a matter involving public safety in exigent circumstances;
3. with the consent of the individual who is the subject of the record or information; or
4. for library administrative purposes only.
I see nothing wrong with that policy as written. What other entities would you like to see release personal information without a "subpoena, search warrant, or other court order, or to a law enforcement officer who is investigating a matter involving public safety in exigent circumstances"?
It seems to me they followed the procedure in requesting a court order but then determined it was a matter of "public safety in exigent circumstances".