All the time when I am going to enter onto I-680 North going in the other direction, I look at the onramp onto 680 South and sho nuff there’s a Highway Patrol car sitting there just waiting for people to come by speeding. I don’t know the significance but sometimes there’s actually white CHP vehicles (the only I’ve ever seen) also out there. They don’t have parking lights on usually or anything, just sitting there in the darkness very high on the onramp way out of sight of the freeway until it’s too late. On a side note, it’s pretty pathetic but I see Danville and San Ramon police at many times having people pulled over on the FREEWAY, so just good to be careful in general in this area.