Put the fudge in a ziplock bag. Press out most of the air, and then stick a straw into the tiny hole you've left open in the zipper. From there, suck out the remaining air. You'll see the bag cling to the contents. Pull the staw out when you can get no more air out, and finish zipping it. This is called sous vide, which means without life or air. Best way to ship the fudge, or even cookies. Hard candy is another matter. Humidity is going to wreck havoc unless you wrap pieces individually. Then cushion the packages with paper towels or newspaper, and head off to the post office.
How can we sleep while our beds are burning???