Just buy blank non-programed HID Prox cards:
2x HID ProxCard II Clamshell Proximity Access Card | eBay
They work at all gates that are not actually connected to a computer (most gates).
Will not work at Paradise, RV storage, Hickory Head Hammock gates.
If you belong to the Ocala Sportsmans club, your card will work. They also use a HID system.
Or just push the red button.