Actually it's limited to only FL residents and AP holders.
When the program was opened up to AP holders earlier this year, the office that handles the DDE had to hire and traing additional staff. Somewhere along they way they lost focus of which groups were actually eligible for the card and were issuing them to ANYONE for about 2-3 weeks.
Since that confusion was overcome, DDE is again limited to just AP holders and FL residents. AP holders are being asked to provide either their AP number or AP voucher number in order to purchase the card.