Check with the manufacturer - more of these are scanned electronically these days so you never know. I would also check with the neighboring states. Can't hurt.
In the meantime, watch the usual suspects, craigslist, ebay, etc..
but certainly providing the
Coast guard the serial number
would help (i'd ask law enforcement)
and don't underestimate the power of google either
because if someone posted the serial number on any blog (anywhere) on the internet
google will find that conversation