Notice how perfect the stickers are are laid out!. Usually when one gets stickers it's done over a period of time and usually not perfectly laid out. Plus, not one appears to be faded in the hot Florida sun. Interesting.
Now, check the package. When mail is sent, the postal service will put a mark on the stamps so these stamps can't be used again. Do you see any markings? This package was picked up in Delaware after being "sent" from Florida. Again -- interesting!