With the construction going on right in front of the hotel (the hotel is still open!), finding the cab stand a midst the massive equipment and street closures can be hard. The trick is taking exit A2.
Here's my step-by-step direction with photographs:
|In the BART/MUNI station, look for Exit A2 (Market & Davis St)|
|When you exit onto the Market Street, Go straight past the Wells Fargo Bank|
|Before you hit Drumm St, turn left round the corner to the taxi stand|
|Stand is at corner of California & Drumm St|
Here's the map showing the location of both taxi standards relative to the BART station: