I didn't realize I had this many responses! Damn, you guys are pretty good. This was on a downhill (obviously) in Palos Verdes but still kept up to ~14m/kw by the time I got home to Culver City. Up the 405 and all. Was pretty impressed.
Seems like my normal consumption on the highway is...
My dealer was very up front with me that I had three days to get the car and since I was traveling and the car came 3 weeks early they could make an exception and give me a few more days to get it.
But that had to be specifically communicated to them. I think you sat on your heels too long...