790.33 Field of regulation of firearms and ammunition preempted.—
(3) PROHIBITIONS; PENALTIES.—
(a) Any person, county, agency, municipality, district, or other entity that violates the Legislature’s occupation of the whole field of regulation of firearms and ammunition, as declared in subsection (1), by enacting or causing to be enforced any local ordinance or administrative rule or regulation impinging upon such exclusive occupation of the field shall be liable as set forth herein.
(b) If any county, city, town, or other local government violates this section, the court shall declare the improper ordinance, regulation, or rule invalid and issue a permanent injunction against the local government prohibiting it from enforcing such ordinance, regulation, or rule. It is no defense that in enacting the ordinance, regulation, or rule the local government was acting in good faith or upon advice of counsel.
(c) If the court determines that a violation was knowing and willful, the court shall assess a civil fine of up to $5,000 against the elected or appointed local government official or officials or administrative agency head under whose jurisdiction the violation occurred.
http://www.flsenate.gov/laws/statutes/2012/790.33