no it would be something obsure... like if a cams official comes infront of your car waving a red and white flag and doing a thumbs down it means stop,
but if he comes infront of your car waving a white flag with black stips and doing a thumbs up it means stop.
and if he is on the side of the road doing the above and you stop you have to fill out 300 pages of paperwork explaining to them why u stoped instead of keep on going.
plus i am sure u would need to know how much is a gallon of cams spec petrol worth etc etc.