A guy out here has blue film on his headlights for quite a while now (over a year) and hasn't been pulled over for it yet. The light output is more green than blue though, I'm sure it varies by brand.
I believe the law is you need clear (white ) headlights . If a cop wanted to be a dick about color he could . Tint is not illegal during the day , but at at night you can get pulled over for dim headlights (again if the cop is going to be pushy) . Plus driving at night with those GTS type tint covers on the car totally block out the light .
There is a conversion van in Jollyett that had his headlights tinted with Green i believe.
I think its stupid tho just like those bright blue led garbage that blinds everyone going past. Those assholes need to be ran off the road.