If the Sheriff requires signs to post the surveyed property boundaries - OK. Walton County's requirement. Then don't vilify property owners for doing what the Sheriff and Walton county requires ... oh I forgot the Walton commissioners prohibited property owners from placing signs marking their property boundaries at all times.
Or...
How about Walton mark their 8 miles of public beach boundaries and by default the remainder of the 899 parcels are private property. If the Sheriff is going to make up the rules and use the wet sand, private property owner don't need to survey their properties, unless you/Walton want to prove the public landward MHWL property boundary is landward of the wet sand or near the toe of the dune. But I'm not worried about that MHWL survey either.