Just went down the legislation.gov rabbit hole, and it seems there are regulations on headlight height and angle that have been in place since 1989, but unfortunately no maximum power or brightness restrictions.

Which means that although a driver could be fined for using excessively bright headlights, the manufacturer of the car could not be fined for making the car like that in the first place.

Perhaps if things like these noise cameras gain in popularity it will encourage the lawmakers to look at other issues like this one.