I think you have a good chance of getting the ticket dismissed.
It seems clear from your photo that the meter covers the space immediately to the right, i.e., the space between the meter and the red fire alarm box. There is ample space there to park a car legally. The space to the
left of the meter, where you are parked, is clearly NOT a metered spot. The space between the meter and the curb cut is too small to fit a car, but a motorcycle fits there easily, without taking up any part of the metered spot, or blocking the driveway.
There are spaces like this all over San Francisco. Indeed, the SFMTA recognizes this and, more importantly, allows motorcycles to use these spaces to park.
See the following comment at:
https://www.sfmta.com/motorcycle-parking
"Motorcycles may park in any legal parking spot for cars. This includes full-sized metered spaces, motorcycle must pay the meter if they are occupying the space.
On many blocks there are short stretches of curb that while not signed and marked for motorcycle parking are ideal motorcycle parking locations because they are too small for a car or other vehicle to legally park.
For more information about off-street motorcycle parking options including pricing please visit the Garage & Lots page"
I don't understand why you would get a ticket for an expired meter when you are clearly not parked in a metered spot and, as far as I can tell from your photo, the spot where you are parked is not governed by the meter.