Well, if I did shout Yeee Haaa, the pedestrian would more than likely hear me, hey I'm not talking doing crazy speeding here, just overtaking someone who will likely be going between 10-15 miles per hour.
This seems like an all out war against car drivers? I'm slightly puzzled why nobody else has any concerns about this..
It just seems one big scam to me, you only have to look at where they position the mobile speed cameras, from what I have seen they put them in positions where there is hardly any pedestrian activity. Take Broadway for example, I don't think I have seen any pedestrians there ever, yet they place a mobile speed camera there quite often, why? because they know the car driver will more likely speed up, because it is safe to do so.