Anti flash coatings don't work on high end tariff cams that use a special tech to read plates.

They do work on low grade IR based cameras like a lot of city level traffic cams but your messing with getting caught by the state or Feds to get away avoiding a few red light cams.

Most tolls don't use flash technology - the common 3 techs are High band IR or REG , regulars band IR with IR projector and flash .

Most highway level system use HD Nightvision conversion or High BAND REG - some new ones use Laser based color correction and Id but they are very high end.

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These coating are more for running red lights in local towns with mostly use normal band IRL projection or flash .