Conveniently, he is not talking about his 9 mile experience...
He was hospitalized for hypothermia and dehydration. He did talk to the media today but was still not fully recovered.
His boat was found.
He wasn't "found" by searchers - after reaching shore he rested until he could walk and rang the doorbell on a house nearby to get help. So there should be plenty witnesses to talk to and ocean drift rates to calculate - and medical records if he releases them - if the press is skeptical.