I am sorry that FedEx was not more helpful with your delivery, but the reason lies in the request you were making. The delivery location cannot be changed because FedEx will only deliver to the address paid for by the shipper. This is why you were told that only the shipper could change the address. My suggestion was to keep the original address, but request the package to be re-delivered when someone is home or possibly pickup at the FedEx office the following day. I am glad that the package was safely delivered to your home and now is in your possession. Enjoy the pedal board!
Thank