Parked on the street. Even though SF is not easy, where it's parked in SOMA there are spots virtually every day in the afternoon and evenings are no problem at all. The only exception is Monday night because of street sweeping. I know the streets around here very well, so ask me - I can help you find a spot. Text me if you have questions or need help. If you have to return in the morning you can park in the lot at 40 Oak Grove St. If it's late morning (11am or later) most days during business hours I can allow you to park at a 2 hr spot or at a meter - but only by arrangement via text.