Clearance now completed, apparently. Delivery updated and now says this morning by 10:30am PT.
But my Surface Docks still do not have a delivery estimate.

I'm not setting up my SB with the tangled mess with the USB hub that I'm using now for my SP2. I'm hoping that the Docks are now available in-store so that I can pick one up if my delivery is not going to be today.
Update: It is now 12:00pm PT and FedEx page is still showing delivery today. So I called and the automated response indicated that the package has cleared customs and it is with the delivery location that services my area. I am skeptical of this because online it still shows that it is in Memphis.
So I decided to speak to an agent and he said that it just cleared customs and that the delivery will be Monday.