This act shall take effect upon becoming a law, but shall not be construed to abrogate any otherwise applicable agreements or requirements of any contracts, interlocal agreements, or other written instruments which are in existence as of the effective date of this act. To the extent that any contractual or other agreement provisions in existence on the effective date of this act conflict with the provisions of this act, the provisions in the written agreement shall control.
Fla. Stat. § 164.1065