Some retail stores and smoke shops in San Francisco are bracing for a possible curfew.  A pilot program would force them to close between midnight and 5 a.m. or be hit with fines. 

Mayor London Breed say the open-air drug markets happening late at night in the Tenderloin neighborhood are “unacceptable and must be met with increased law enforcement and new strategies.” 

The proposed curfew could be voted on as early as next month.