Normally the driver would be warned that the window tint was to strong and have a written warning that it would have to be fixed As Soon As possible. But someone had a field day getting 5 at the one time and instead of a warning probably less writing just to fine them. I am sure a warning would have been sufficiant.
looking at google satellite view of the area it appears to be close to an industrial estate, thus Vosa are likely to have been conducting one of their regular stop and check operations and they happened to get caught up in it.
They were lucky they had a deferred prohibition(apparently)a normal prohibition means they cannot drive it until the prohibition is removed, thus their cars would have to be trailered away from the stop. Vosa could also insist on an Mot test to remove the prohibition even if the vehicle is not yet over 3 yrs old, depends how snotty the driver reacts to the stop.
Maybe the publicity of this was designed to make more people aware of the problem. Riding a motorbike makes me very cautious of drivers with almost black glass on the front windows. I’ve usually noticed that it’s who I refer to as walleys that have this glass so I’m not surprised that footballers use it, too.
I suspect that there was a beginning to the story, and it was a conversation that took place in a local police station, along the lines of "who do these people think they are? Let's teach them that a copper can tell a £60,000 a week footballer to wind his window down"
Something along those lines is probably near the mark.
It's something that we'll see more of as people realise that now VOSA are here to enforce vehicle compliance, illegal tints, illegal number plate letter spacing, illegal bonnet mascots, illegal, trailers, illegal whatever... they made a point of going for high profile targets to get media coverage.
We've had it for a while now in commercial operations, what we're seeing is the public learning that VOSA will also be enforcing private vehicle compliance, you'll see more of it from now on.