But it's kind of slow and tedious. They can expedite the process by just including the report. Open if you agree. Delete if you don't. Or even defer the decision until later, but there's an "instant unlock" option available at any time. That seems a lot better than the above alternative.
Maybe Maine flubbed the implementation, but it seems like a "for your consideration upon agreement" facility should exist that doesn't require multiple round trips. Certainly more convenient than the alternative.
http://www.maine.gov/foaa/faq/index.shtml
This is all irrelevant if they sent the information before agreeing on payment terms.
According to MuckRock, Maine allows for fees of $15/hour for search and copying time. If they demanded $750 before sending the file or making it otherwise accessible, MuckRock could challenge them to provide the record showing 50 hours of billable work.