Depending of what part of the world your in, as far as breaking any law? It would pay to check this for your part of the world. But usually most of them will give you a pass, to just have the plate hinge fixed by it's self. But to remote actuate them? is where you'll get yourself in strife. What i mean with remote actuate, is where you've set it up to flip up by operating a cable, or button, or switch & such. These plate hinge brackets are about $2~$3, are easy to fit straight to the existing plate bracket, where they have a tension bolt on the hinge, making it where it can be lose or tight, where when set tight, if flipped up by hand it will stay flipped up until you flip it back down to the display facing position. In the end, so long as you stay between the lines with one onboard, it's up the the owner how they'll use them.