The best damn beer shop is downtown, and close to the conference.
http://www.bestdamnbeershop.com/
Up here by my house and close to the TC is Keg and bottle (same people as KNB wine cellars)
http://www.kegnbottle.com/
3566 Mt. Acadia Blvd.
San Diego, CA 92111
KNB Wine Cellars is approx 6 miles from the hotel. They have one of the best beer selections in town. 30 Taps, and loads of beer. Also, Windmill Farms grocery store, next door, also has a great beer selection, Directions
If you are looking for Russian River bottles, this is the only place I know about in the area. La Mesa Market & Liquors, Directions
I live in the area, so I'll be heading down on Thursday.