I'll agree and stand corrected in that it is not against the law to carry concealed at a gun show.But what if the no carry loaded firearms sign has by "Order Of Sheriff's Department written on the sign? In Fort Pierce the gunshows are held in a county building.Is there a public meeting going on at the same time?Most likely not but I for one would not want to find out the hard way.
Then the Sherriff's department is breaking the law, also there could not be a public meeting at the sametime or the show could not happen.
790.33 Field of regulation of firearms and ammunition preempted.--
(1) PREEMPTION.--Except as expressly provided by general law, the Legislature hereby declares that it is occupying the whole field of regulation of firearms and ammunition, including the purchase, sale, transfer, taxation, manufacture, ownership, possession, and transportation thereof, to the exclusion of all existing and future county, city, town, or municipal ordinances or regulations relating thereto. Any such existing ordinances are hereby declared null and void. This subsection shall not affect zoning ordinances which encompass firearms businesses along with other businesses. Zoning ordinances which are designed for the purpose of restricting or prohibiting the sale, purchase, transfer, or manufacture of firearms or ammunition as a method of regulating firearms or ammunition are in conflict with this subsection and are prohibited.