We highly recommend utilizing the various forms of public transportation to arrive and get around San Francisco.
If you would like to bring your vehicle and drive to the conference, we highly recommend driving to the most convenient BART station, park your car there over the weekend, and utilize the BART transit system to get to downtown San Francisco. Most BART stations offer free weekend parking (Monday-Friday at various rates). Please visit the BART stations list to find the nearest station near you with parking instructions: http://www.bart.gov/guide/parking
If you would like to drive into San Francisco and park near the hotel, there are parking structures near the Grand Hyatt San Francisco hotel with various rates:
Sutter/Stockton Street Garage
444 Stockton Street
Union Square Garage
333 Post Street