That is not the best idea I have heard today. If the expressway is closed, it will cause an inordinate amount of trouble. Wheres all your cameras Tampa? We know you have them, and about 10000 cops watching them all day everyday. They sure can pick my license tag out if I even get near that expressway. If you are worried about things like this then you should be more worried about small aircraft. And radio controlled toys with payloads.
http://www2.tbo.com/news/poli tics/2012/jun/11/selmon-so- close-to-the-action-likely-to- be-closed-ar-414749/
http://www2.tbo.com/news/poli