Not that it would ever be enforced against these people (and not like I agree with the ordinance existing at all) but the “typical weekend stoop hang” seems like it would definitely be illegal by a strict reading of San Francisco Police Code §168 a.k.a the “sit/lie law”:
https://codelibrary.amlegal.com/codes/san_francisco/latest/s...=======
> Present laws that prohibit the intentional, willful or malicious obstruction of pedestrians do not adequately address the safety hazards, disruption and deterrence to pedestrian traffic caused by persons sitting or lying on sidewalks.
> (b) Prohibition. In the City and County of San Francisco, during the hours between seven (7:00) a.m. and eleven (11:00) p.m., it is unlawful to sit or lie down upon a public sidewalk, or any object placed upon a public sidewalk.
> (c) Exceptions. The prohibitions in Subsection (b) shall not apply to any person:
> 1. Sitting or lying down on a public sidewalk due to a medical emergency;
> 2. Using a wheelchair, walker, or similar device as the result of a disability;
> 3. Operating or patronizing a commercial establishment conducted on the public sidewalk pursuant to a sidewalk use permit;
> 4. Participating in or attending a parade, festival, performance, rally, demonstration, meeting, or similar event conducted on the public sidewalk pursuant to and in compliance with a street use or other applicable permit;
> 5. Sitting on a fixed chair or bench located on the public sidewalk supplied by a public agency or by the abutting private property owner;
> 6. Sitting in line for goods or services unless the person or person's possessions impede the ability of pedestrians to travel along the length of the sidewalk or enter a doorway or other entrance alongside the sidewalk;
> 7. Who is a child seated in a stroller; or
> 8. Who is in an area designated as a Pavement to Parks project.