Join Date: Jul 2007
Location: San Francisco/Sydney
Programs: UA 1K/MM, Hilton Diamond, Marriott Something, IHG Gold, Hertz PC, Avis PC
Posts: 8,156
I was looking at catching this last week. In the end I didn't, but...
If you are catching it, especially FROM Millbrae, be aware that it departs from the Caltrain side of the complex, not from the BART side.
Also keep in mind that if you're planning to park in BART, then in theory at least you need to actually catch BART. If you're using the BART airport parking then it's going to be hard for them to enforce that, however if you're paying the $3/day (even if only for the first day) at the machine and then head off in the direction of Caltrain then it might be a different story (they have signs up saying you can't do that, but I have no idea if they enforce it or not).