Last week down at Fernandina, Nassau County we were looking for pogies off the beach as we always do. In about 15 feet of water, perhaps 200-300 feet off the beach, well outside of the breakers and throwing the cast net. There is a sheriff's deputy in his truck on the beach. He gives a few short blast of his siren and we don't think anything about it. We move on down the beach a little further and he drives down where we are and sounds his siren again and gets out of his truck and starts waiving at us, as if we are too close to the shore. I looked through the FL regs and see nothing about this. Any ideas?