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Indoor reception, especially when the signal path involves your being behind one or more hills, is going to be hit or miss, at best.

The Leaf and other small, compact antennas are too small electrically to be effective receivers of VHF signals. VHF signals on channels 7 through 13 usually require an antenna that's around 26-34 inches in width for the most effective reception. For an indoor antenna, that usually means "rabbit ears" as the most cost-effective reception element.

Please note that there are no operational TV station in San Francisco that are using channels 2 through 6, so using an all channel antenna won't get you anything different than will a 7-51 antenna.