It does have to be a money order or cashiers check only. The ups guy will probably not leave the package at your door, as you will have to sign for it if it's from an op. You can have it placed on hold and pick it up at the ups hub, pick it up that night after the driver gets back, or wait for him to deliver it the next day. Remember to bring your ID. They are usually pretty strict on this when you go to the hub. pete.