I am not in California, but I just bought a 2012 Prius IV Blizzard Pearl that was still new on the lot. Got an incredible deal and generous trade. There are a few changes to the 2013 that may make a difference to you, but I found no deal breakers there. While taking the evening after the test drive to think it over we did a simple google search and found there were still several 2012's still new around town. These they want to move. We were pleased. You might want to look into it. *Sorry. Didn't read down far enough. Congrats on the purchase. I have been thrilled with mine.
The Escondido Toyota the guy tried to ruff me up and I left. I purchased a Carlsbad Toyota and got a good deal. I suggest you visit 3 dealers and write your notes down a take the best deal if your buying new. Used the cars drop quite a bit the first year. Should be 5-6K off original sticker