cbslocal – excerpt
SAN FRANCISCO (CBS SF) — When is it okay to park in front of a driveway in San Francisco?
San Francisco MTA Spokesman Paul Rose says the answer is simple. “If you don’t own the property, don’t park in front of it because you could be cited, or you could be towed.”
Any car blocking a driveway has to be registered to the address, but the city won’t generally ticket or two from in front of a driveway unless someone complains.
Residents are allowed to park in their own driveways as long as the vehicle doesn’t extend into the sidewalk.
For a complete list of parking rules, check the SFMTA website.