I don't think there is any strong Pentax dealer around here either but there are a few mom and pop shop that is worth dropping in.
About 2 1/2 hours away they have Samy's camera in Los Angeles, they have a few of them there.
I've been there a few times but this was about 4 years ago so I don't know how there pentax selections are right now.
Digital and Film Photography and Consumer Electronics | samys.com
In San Francisco they have Calumet. I never been there even though I lived about 90 minutes away from them. I may go there tomorrow, I'll let you know how it goes.
Digital Cameras, Camcorders, Photography Equipment - CALUMET
In San Jose they have San Jose Camera. I was there just a few weeks ago. I bought a Silk tripod from them at a really good price, about $30 cheaper then bhphoto, the mega store in NYC. They had some a few zoom DA lens in stock but no DA* lens in stock. I believe they are a "Sony" camera store since they had more Sony then the Canon or Nikon on display. But check them on your way to San Francisco it is the same way, just a slight detour.
http://www.sanjosecamera.com/