Help!! "Knead" some starter in San Diego

I posted this request in the introductory forum for my first post, but thought I would ask here too. 

I left my starter in my friend's fridge in Northern California yesterday morning before hitting the road.  Now my box of baking supplies is mocking me. Could anyone in San Diego spot me a pinch of starter? (for some reason, bakeries seem to be reluctant to give away their golden goose)

Thanks in advance.