In this April 20, 2016 file photo, customers buy products at the Harvest Medical Marijuana Dispensary in San Francisco.
In this April 20, 2016 file photo, customers buy products at the Harvest Medical Marijuana Dispensary in San Francisco. Haven Daley AP
In this April 20, 2016 file photo, customers buy products at the Harvest Medical Marijuana Dispensary in San Francisco. Haven Daley AP