Trawlers in Five Fathom Creek

Just got down to the coast and have not started shrimping yet but was on my boat late yesterday and three trawlers were in Five Fathom Creek with nets out. I know that is a creek that they use to get out to the ocean but never seen them with nets out there. Also never really seen anyone baiting there either. Anyone ever tried baiting or deep holing there? Also, there is a shipwreck laying against one of the channel markers in the creek that could be dangerous at night as it extend probably 40-50 feet to the channel side of the marker.