Creation: about time too!
So are you happy with the car? did it all checkout ok with GL?
Dont worry about the rear w/screen or back 3/4 windows, you can tint these whatever you like, its the front 2 that have to be 35% [legally]. I spoke to the owner of a tint business about this on the weekend.
Just take it easy and the cops shouldn't bother you, do you have *P* plates? that won't help atm.
I was doing a fotoshoot down the beach last week, and was accidently blocking off a disabled car park, Divisional [Police] Van turned up, both hopped out the car [i was 50 metres away at the time], i got a bit concerned as they started walking around the car, so i went over and chatted to them, they said $100 fine for this, i told them i just finished off a fotoshoot and said sorry, it was the best spot for it...they asked me to show em the camera [fair enough] so i did, then said to move my car...and then they hopped back in the van and moved on *sigh*.
BTW my rear windows are probably the same as yours fully dark from J/P...not film either...they didnt say anything about the tint or anything else...