The Santana Row office is miserable to get to via Caltrain. You're going to want to bike or scooter and even then it's a trip on Stevens Creek/San Carlos, which is exceptionally busy at all times of day due to the two malls next to it and also it drops bike lanes for some portion of the road.
I feel like this was the case already? Maybe not for 2 hours but I do distinctly remember that when I popped into the Twitter offices for a bit I was able to park there for a few hours but after that it would charge me
