[JoeFromCA]

I have PhotoBlocker spray on the license plates of all 6 of my vehicles (cars and motorcycles). It doesn’t work. The reason I know is that here in CA the toll fastpass can be activated by a simple read of the license plate, you don’t need to use the transponder. And without the transponder, with the spray on the plates, every one is read every time. Sorry, it’s a scam.

[Kenton]

Thanks for the info.