Sometime in the late 90's I was driving north on I280 near Woodside CA. I got off at the Sandhill exit and found myself in the middle of Al Gore's motorcade to one of those private residence fund raisers. Evidently the offramp had been unblocked a moment too soon. Half a mile later I turned off onto the road home without having been forced off the road or tailed or visited by the secret service. I realized what was going on at the time, which made it a very strange experience.