It’s dusk on an early June evening in San Francisco, but the City by the Bay is feeling like the Crescent City. Just off Market St., two city blocks are hosting a street festival, early revelers are enjoying a rare chance to drink the streets, and the Meters’ “Cissy Strut” is playing over the sound system of a small elevated stage in the middle of a line of food and drink booths. A crowd of Berkeley ex-hippies, college students and dread-locked Rastafarians are slowly filling the street i...