If it has information you can already visually see from a car, it wouldn't matter if someone scans it. Nakikita naman license plate, car model and make, color and registration.

Mas relevant kung this is used on public transports, emergency vehicles, government owned vehicles and military vehicles.

And as long as none of it is valid for evidence (as in someone can remove it and place it on another vehicle for malicious intent) then it should not be an issue. Kung traffic monitoring lang ang purpose, pwede na.

Actually di mo na need ito para makita at mahuli mga luxury cars with government plates being used on a sunday or holiday. Punta ka lang sa Alabang Town Center on sundays madami duon red plate.