Wasn't me.
Although I do ride with a black rainsuit on (it does have reflective stripes on it though - and they shine like a light)
Everyone makes mistakes (no lights on e.t.c.) however as I have mentioned before the amount of cars, vans & lorries with maladjusted and broken / non-working lights is now getting to epidemic proportions.
Rather than trying to trap speeders the authorities should be dealing with these easily rectified light problems.