SF issues 396 warnings under Mission Street vendor law aimed at curbing suspected stolen goodsSan Francisco's Mission District has seen cleaner sidewalks and displaced illegal markets following strict anti-vending laws. San Francisco's Mission District has seen cleaner sidewalks and displaced illegal markets following strict anti-vending laws. San Francisco's Mission District has seen cleaner sidewalks and displaced illegal markets following strict anti-vending laws. San Francisco's Mission District has seen cleaner sidewalks and displaced illegal markets following strict anti-vending laws. Rodrigo Lopez, president of the Mission Street Vendors Association, said the city has made significant progress in addressing the issue.