My husband is a taxi driver, and sometimes he need to rush to his client or he lose the booking. Regulary received Fines for speeding, this reduced our budget. But now, no more fine letters.
The license plate is fully readable for police insurance radars, the "Anti Fine" film only protects you against the Speedcameras. When the speedcamera will try to take a picture of your number plate, some of the numbers will be flashed and "Fine Letter" will never find you again.