[FirmwareBurner]

There are passive ways too on AliExpress like IR reflective sprays, coatings and films, but in my country, and I suspect in most of Europe, any intentional tampering with the legibility of your license plate is illegal and can land you hefty fines or even jail if caught.

[Animats]

They also don't help much any more. Not with cameras that do color, infrared, 4K or 8K video, high dynamic range, and vehicle make and model recognition.[1][2]

In the first video, note the checkbox in the analysis program for displaying vehicles with "strange plates" which were in range for reading but not read. Trying to obscure a plate draws automated attention.

Big Brother has AI, too.

[1] https://www.youtube.com/watch?v=-qJsvBW05RI

[2] https://www.youtube.com/watch?v=5U2LWuBFIR0

[FireBeyond]

Flock will use things like bumper stickers, tow hitches, roof racks, body panel color differences, wheels/rims, and window tints to add to vehicle identification metadata".