Years ago, I noticed my uncle put some 1" spacers behind only the top mounting holes of his front license plate. He said it was to throw off a laser gun and have the reflection go down into the ground instead of coming back to the officer.
I realize officers have other choices to aim at (headlights, grill, etc.) but would this work to prevent a laser hit right at the plate?
What angle of reflection does the gun need to be at for the laser light to come back?
You can probably achieve 15 degrees using this method, and on some cars the top edge is already a little further forward than the bottom just because of the OEM mounting bracket. So you might have as much as 20-25 degrees relative to perpendicular with the ground on some cars.