Tomatoes are not normally pollinated by honeybees. They have self-fertile flowers, so generally they pollinate themselves when shaken by the wind. Native bumblebees are sometimes used in greenhouses, and other insects (smaller than honeybees) sometimes play a role.

I don't know about San Francisco, but there are quite a few urban hives in the East Bay. While there are CCD problems in the area with some beekeepers, there still are many bees in the area. I buy commercial honey from Bee Healthy, who keep hives around Oakland.