No, not the fob. Well not sure about your Home Depot, but mine, they sell oem spec (meaning not original but close to it) blank keys for Ford, GM, and etc. And they can program the key for your using your original key. This way you will now have two programmed keys. Now you can program the the third one (the ebay key) in your car yourself following the instructions I posted.
Why not just ask HD to program your ebay key? Well they wouldn't do it for me, as its not in there system, they don't want to be liable, their policies this and that.
But to save all the headache and hassle, I would just go to the Ford Dealer and ask them.