That sounds like a fun trip. Last time we went to Key West, we flew down there for a wedding. A hurricane made a hard right and headed straight for us so they called for a mandatory evac, airport was closed down, so we rented a car and drove to Ft Lauderdale and caught a flight home from there. A1A was one big parking lot the entire way. Gave a Coast Guard guy a ride too.
We may have partied a bit on that long ass drive.
BKB