I suspect that the sound won't be turned all the way up to 11 -- instead it'll be used to hail speeders, with a warning or a command to
There's plenty of precedent for using a "sound cannon", or "Long Range Acoustic Device (LRAD)" to communicate authoritatively Here's an interestng article on the topic:
http://www.rferl.org/content/explainer-lrad-sound-cannon/24927845.html
In my state speeding through construction when lights are flashing meaning persons actually there working will get you a $500 fine. In 99% of the zones at least one cop is there drawing some extra cash which is fine. That should suffice. A sound cannon can cause the offending driver and others to loose complete control of self and vehicle.
The “proper vapourizing ray.” When I was a kid, we took LONG family road trips across the country and that was always my dream. I’d target the idiots using the bug spat “sights” on the windshield and let loose the ray to vaporize ‘em. Only way to keep my sanity cooped up with the family for 5,000 miles.