It is not only your opinion but the opinion of the US Supreme Court that once the beach is renourished with public funds it and all of its dry sands (not just mean high tide line) are public. I posted a link to the ruling above. About the signage - we don't see signs advertising hot wings on the beach... The only signage I see are terrible private beach signage that could impede turtle nesting. I want it removed.
Actually, that's not what the case was about. The case was about whether a judicial takings occurred when the Florida State Supreme Court ruled in favor of the State, County, and Destin regarding the legal establishment of an Erosion Control Line. Per Florida law, all sands placed seaward of an erosion control line are state owned and thus open to public use. All sands placed landward of the erosion control line remain in ownership of the upland owner and are subject to any covenants or easements as per the property's deeds.