San Francisco Citizen

Right here.

I don’t know, you might buy it.

Happy California Street, where ped and cyclist coexist:

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Oh, here are the rules for cycling on sidewalks:

1. GO SLOW – This is the chief of all rules for riding on the sidewalk. All the other rules fall under this one. You should never ride faster than a relaxed jog. The sidewalk is built for pedestrians, so you should not be going faster than them. Pedaling fast down the sidewalk is a perfect way to get hurt, hurt someone else or get pulled over by a cop.
2. Yield to pedestrians – If you come up behind people walking, be very polite and wait for a good time to ask them to let you pass. Never come up behind them yelling, ringing a bell or anything else that could startle or scare them. You are trespassing on their terrain so be courteous.
3. Check every cross street and driveway – This is the dangerous part! Drivers are used to pulling all the way up to the road before coming to a stop and turning onto the street you’re following. Make sure when coming up to a driveway or cross street that you slow down and check to make sure a car isn’t coming. They aren’t looking for fast moving vehicles to be coming off the sidewalk, so you have to be watching for them!
4. Only cross the street at crosswalks – A good way to get hit by a car is to come darting off the sidewalk into the street randomly. Again, remember that drivers aren’t looking for people to jump off the sidewalks into traffic randomly. If you need to cross the street, wait until you get to a cross walk and do it there.
5. Be willing to walk your bike – If you regularly ride on the sidewalk, there are going to be lots of times where the best decision is to get off your bike and walk for a bit. This is usually due to congestion. When there is just to many people around that you risk hitting one of them, it’s time to walk. Constantly keep it in your mind that you can get off your bike and walk if things seem “iffy”.