This isn't exactly late-breaking news, but the cops now have a hand-held doppler radar gun that can make out individuals inside a house. If this bothers you, I recommend you get a big piece of cardboard and attach to it the tinfoil cutout image of something the cops might find entertaining. An orgy for example. Cover the other side with something more socially acceptable like flowered upholstery or wallpaper, and place the construction against your street-facing interior wall with the wallpaper on the inside.
Done right, the guffaws of laughter from the outside will give the game away long enough for you to hide in the basement until they leave.