As much as I harp on people who smoke their tail lights...this mod actually doesn't look that dangerous to me.
I also don't think they'd give you a hard time at inspection for it, I see dodges on the road that have the headlights faded and hazed from age to the point where barely any light gets through, yet they still have a valid inspection sticker.
Personally, my headlights get restored about once a year and I run slightly brighter than stock bulbs as well...I want to know what I'm driving into.
But if someone wants to do this to their truck, more power to ya. I wonder if the film helps keep the lights from hazing over time.