Black bra's defeat laser detection?

ZeeBabar

I read the following "recommend additional products that can help delay vehicle detection by police radar and laser. The simplest is a black bra used to protect the front of a vehicle from road debris and stone chips. Because it covers much of the vehicle's reflective surface, a black bra dramatically reduces the light reflected back to a laser gun."

The article says that even the best radar/laser detectors do not really work with cops using the latest laser detectors. Sure, your detector goes off but its too late. Guy says the most you can do is reduce the reflective surfaces that lasers are aimed at, generally, the license plate/front area.

They look ugly but if they can help?