What happens when the city power goes out and all of the stop lights go out -- not blinking red, but off? I'm guessing the cars know where stop lights are supposed to be. Maybe they just pull over and wait.
Is it smarter than a 5th grader? What about when 4 cars get to a 4-way stop intersection at the same time? Then what do they do?
Why don't they just build a big net on the barge? If it doesn't land straight up and down, or if it falls over it won't matter. And if the rocket thing doesn't work out maybe they can still catch some nice tuna.