First possible places between Palo Alto and Los Gatos that come to my mind are De Anza or West Valley. However if we choose the wrong time, the parking lots may not have enough room for us to group together. If its on a weeekend it should be ok. We could also contact a Mercedes dealer and they may set aside space for us to group together, we could give them a framed glossy photo of the meet or somthing as thanks.