Less than five minutes after I parked the car, the motorcade drove by at about 35mph (according to the police radio). Several police cars, followed several town cars, followed by two busses, followed by several more police cars, followed by two motorcycles. Of course, Senator Obama was nowhere to be seen -- all the vehicles that he might have been in had tinted windows.
Two minutes after the motorcade went by, the police officer let me cross the intersection and go home. I was inconvenienced for a total of less than ten minutes. I hope the people who were intentionally camping out to see the motorcade felt it was worth it. I'd have felt ripped off.
If I knew that I was going to be in a position to see the motorcade, I might have made an anti-DST sign and tried to organize a protest of sorts. More likely, I would have waited an hour before going to the guitar store.