We sailed a boat bought in The Cayman Islands
into Key West
last winter. We went to a marina and called Customs
. They told us to come by the customs
office at Key West airport
withing 24 hours. No Problem they were very nice no issue. Look up the phone
number on internet
or a phone
Had bill of sale
for boat and our passports, was all that was needed.
Sounds like a similar situation we had been out of US for about 30 days.