Yes . Although this is largely decided by municipal courts which have disagreed on this . For example in Los Angeles the cameras exist but you can ignore them . <| sep |> Increasing aggregate demand through government spending literally does not require it to be cost effective the point is not to get what you are paying for though that is a bonus , but to keep people in work and keep businesses spending . Keynes literally argued that you could pay people to dig holes during a recession , and it would be worthwhile just so they went and spent their wages . The fact that we don ' t pay them to dig holes but to do something productive is great , but it ' s not really the main game . Like with the Rudd Government ' s stimulus program in 20082009 , the real point is to get people working and spending to avoid recession .