Things like that only work to a point. I had a good friend who liked to drive fast and had a nice BMW with a purple heart license plate. He got out of a lot of trouble with that, until an incident where they revoked his license, and he couldn't drive for a few years. Right or wrong the police give preferential treatment to people who gave money, time, or blood to a cause they support, but only to a point.

Personally, I have a bronze star plate on my car, and I don't push my luck too much any more, but I also know for a fact it got me out of a ticket for an expired inspection.