louis jordan , 37 , was rescued thursday after being stranded 200 miles off the coast of north carolina .
refused treatment when he was taken to hospital in norfolk , virginia .
coast guard crew who rescued him said he was smiling when they arrived .
group expected him to be severely sun burnt and covered in blisters .
he refused treatment at hospital and conducted tv interviews straight away .
authorities are looking into his credit card and bank statements from during the time he says he was drifting .