I've flown into SFO many times and have most definitely been in a parallel landing; indeed, I remember asking about separation rules for this on PPRuNe a few years back, and someone has described a similar situation on this thread.
Just recently, actually as of Wednesday, May 15, 2013, 0600 PDT (1300Z), the FAA recently approved the WTMD system and procedures for SFO.
WTMD is the crosswind-enabled elimination of wake turbulence separation minima when Heavy/B757 aircraft depart the downwind runway and any aircraft follows departing the upwind runway.
This system will be fielded at San Francisco International Airport (SFO), followed by George Bush Intercontinental/Houston Airport (IAH), and Memphis International Airport (MEM) to demonstrate operational benefit and support operational experience for potential expansion of airports for WTMD operation.
INFO May 2013