Does anyone know what kind of restrictions there are on the gift card that is included with the Costco annual pass? I was wondering if they can be used to upgrade the Deluxe pass to the Premium DL pass? Also, does anyone have information on the activation of the Deluxe pass? Do you have to activate them within a specified amount of time? What is the date that they become active? Is it the date that you purchase them or the date that you first use them? Thank you!