In order to determine if this is a good idea or not, you have to read the article. The key point is the following: "Volunteers will run radar from their own cars as part of a two-person team in residential neighborhoods. One person will clock any vehicle traveling more than 10 mph over the speed limit, and the other person will write down the license plate and type of vehicle. Later, if police find the license plate and vehicle description match, a warning letter will be sent to the car's registered owner." Based on this, I think it is a great idea.