"Nothing herein shall affect the exemptions given to residents
of this state by the State Constitution and the Florida
Statutes.” Fla. Stat. § 222.20.

This state permits only its residents to use its exemptions.  
Therefore, if it is the applicable state (as determined by the
method stated on the home page of this site), its exemptions
may be used only if the debtor is a resident of this state on the
date of filing bankruptcy.