In a similar vein, a good friend of mine worked with a guy who'd do this sort of thing occassionally. This guy and a friend of his would pick state...say, Virginia (we're in Georgia), and then "race" to see who could get there and back in the shortest amount of time. To "prove" they did it, they would have to stop at each states welcome center to get something (can't remember what). Needless to say, they'd each get about three tickets apiece before they got home. I always thought that was a little stupid. Hopefully your event won't be quite like this.