I had a childhood friend that wound up doing exactly that. Except when he got to Hawaii, he liked it so much he stayed! Still there, I think. But he was a Trust Fund Baby and really didn't need to work for a living.
As far as bringing a boat back from the Zone, if you can afford to buy with cash you can afford to ship it right back to Fort Lauderdale and plenty of commercial ships right there at the embarkation point. Buy, then fly home. Wait for your ship to literally come in.
In a similar vein, I remember hearing that you could buy a boat real cheap in Colombia in the 1970s. Seems people with sailboats and cash would head down there, figuring they'd buy a kilo of two of cocaine and bring it home--just for kicks. They'd vanish, along with their money, and their boats would be left abandoned in the marina. Don't know if it's true, but it's a good story.