Brett -
I live in SF and play Harding once or twice a month. Assuming you get to Harding by 6:30am, I think the chances are good you could get out in the first 2 or 3 groups, but that is not a guarantee. I believe you can book a tee time in advance as a single golfer. You should check the course's website or give them a call to see if it can be done.
I enjoy playing Harding but will admit it is over-priced for a golfer visiting from out of town or the Bay Area.
The bad news/good news is that, if you are running late and need to leave the course before you have finished your round, the 15th & 16th holes are very close to the parking lot.
Let me know if you have any other questions.
DT