Nothing "technical" about it as far as I know. Oak Island and Young's are in the U.S. and unless Ruhmmy drags his boat to the shell station to leave it there or somewhere, it should be a non-issue. I've left my boat at Frank's for weeks and months at a time, on several occassions, and although today things are stricter border-wise, I've never heard a peep from them about not having my boat with me when coming and going. If things have changed and they don't want you doing stuff like this anymore I'd certainly be interested to hear about it.

Ryan