Hey There, right in my back yard eh? The Bay Area is tricky with RC stuff sometimes. Don't drive them on UC property (learned that the hard way). Otherwise if it's small enough and electric you can fool around in the parks and stuff. The only times I've been harassed by the authorities is with the gas 1/5 ones. Use those in parking lots or by the marina. Tilden park has a pretty strict no RC rule. If you have a 1/10 scale electric no one will bother you but I had a park ranger tell me to take my Baja 5B and leave