Bravesfan, personally I believe they would be fine. Like SanPatricio said, I have received seeds from Ohio, England, Germany through the holidays and I didn't notice anything wrong with them. I don't believe the box would be sitting outside for a very long period of time. I would say it's safe to send it, as long as illWill knows you are sending it. MAKE SURE HE'S HOME/WILL BE HOME BY THE SCHEDULED DELIVERY. Just make sure he didn't go out of town for the holidays.
If there's any room in the box and if it would make you feel better, stuff some paper, bubblewrap, socks, t-shirt, whatever in the box for insulation. But I honestly think they'll survive just fine. (plus it's been proven that seeds from frozen pods will geeminate)
Main thing is make sure illWill is aware and that he's around to receive it. And get a tracking number.
If anyone objects go ahead and say your piece