My husband will be in the San Jose area for a week of training, we are arriving on Thurs 3/6/08. We want to take a day trip to Sacramento and then return to San Jose via a quick stop in Napa. My question is what is the traffic like heading towards Sacramento on a Fri morning. (I'm sure we will be up fairly early since we will still be on east coast time.) If we get on the road by 6:30-7:00 am how long will it take? Also, what time should we head back from Napa to miss most of the evening rush hour traffic?