A Sonoma County Superior Court judge's ruling last week invalidating the county's medical marijuana club use permit ordinance has provoked a showdown over a controversial club in the center of Guerneville. The dispute also raises questions about the legality of the only other only other pot dispensary outside city limits, which is south of Santa Rosa, and two proposed dispensaries. Operators of Marvin's Gardens Cooperative say the ruling by Presiding Judge Robert Boyd allows them to stay open and directs county zoning code enforcement officers to back off. [continues 676 words]