http://www.shipgreyhound.com/e/pages/Home.aspx
Its placed on the bus and delivered to the closest bus stop. You will have to go to the window for Greyhound Express Shipping to pick up. It does not get shipped to your house/address. You MUST pick up at the window.
I had a set of wheels shipped Greyhound as it was the cheapest rate for the seller. I did not know the final price as it was included in the asking price.