But be aware of the garage door that doesn't look like a garage door. Once in SF I left my car for about 20 minutes in Haight-Ashbury on a curb that didn't seem

But be aware of the garage door that doesn't look like a garage door. Once in SF I left my car for about 20 minutes in Haight-Ashbury on a curb that didn't seem to have any particular reason to be yellow. I returned to find that what had seemed on first inspection to be a wall was in fact a very subtle gate that slid sideways, and a few people standing around were angry with me. (When I returned to the spot weeks later, there was a new sign.)