I am driving up from San Jose, want to take BART into the city for the day. Would like to park and ride. What are my options?
It should be ok to drive up to Millbrae and take BART in. I've only parked at the Millbrae station once, and there were a handful of spots available. You could also continue on to the Colma or Daly City stations. Daly City fills up except for an overflow lot about a 5-minute walk away. Colma should have spots available.
You can also take Caltrain from San Jose to Millbrae, which is a combined BART/Caltrain station, and switch to BART. Or you can take Caltrain all the way into SF, although the SF Caltrain station is a mile or so south of downtown.