Its now a 6 pointer for having tinted windows?
Since when?
I've had tints fitted on my last 3 cars for the past 5 years and never once have i been stopped. In that time ive been pulled twice for speeding, tints were not even mentioned.
I honestly couldn't count how many police cars/vans ive passed in the last 5 years, but its been a considerable amount and not once have i had any bother.
As to insurance....I wrote off my car a few years ago, pitch black of the night, tints were not even declared, still received a healthy £12k insurance cheque
A lot of scare mongering goes on in internet car forums, i know front tints are 'illegal' but so is having a decat or doing 71 in a 70
99% of police cars do not have the tintmaster installed in their cars, you would have to be EXTREMELY unlucky to come across a car that did. I doubt very much you would induce points, it would be a simple...''Please rectify this in 7 days'' or, rip them off there and then.
To the O.P...No its not an MOT fail and do as you please, dont let people put you off with ''rules and regulations''