Relevant text:
A government agency may charge a fee for the necessary copying of a public record for inspection or providing a copy of a public record to a requestor. A public body may also charge for search, examination and review and the separation of exempt information in those instances where failure to charge a fee would result in unreasonably high costs to the public body. The fee must be limited to actual duplication, mailing and labor costs. The first $20 of a fee must be waived for a person who is on welfare or presents facts showing inability to pay because of indigency.
(italics mine)
Translation: The $500k "fee" is another denial/delay tactic
Relevant text: A government agency may charge a fee for the necessary copying of a public record for inspection or providing a copy of a public record to a requestor. A public body may also charge for search, examination and review and the separation of exempt information in those instances where failure to charge a fee would result in unreasonably high costs to the public body. The fee must be limited to actual duplication, mailing and labor costs. The first $20 of a fee must be waived for a person who is on welfare or presents facts showing inability to pay because of indigency.
(italics mine) Translation: The $500k "fee" is another denial/delay tactic