"...a certain % of State/Highway Police Officers are killed while handing out citations on the side of the road when they are struck by vehicles..."

I have no idea that the % is, but it will be high. Much more dangerous than bullets and knives.

For traffic control, years ago a guy I worked with had a girlfriend who worked at a plastic factory, she got him sheets of a light blue plastic. He would cut out replacement lenses for our flashlights, that blue worked great at night. Drivers see lots of white, red, and amber lights, the blue just jumped out and grabbed their attention...