I had a pick up a few years ago with only a 15% tint on the OEM front side windows...really dangerous at junctions at night, especially rural, ended up dropping the window at every junction. Then, on the A14 a traffic officer stopped me and tested both windows...both illegal so he gave me a choice, 3 points for each window or remove the tints at the roadside. What a horrible job, peeling off the tints in pieces no bigger than a finger nail. 4hrs later I'm on my way. Never again.
Got limo on all the van windows, except the cab windows obviously and with dim interior lights at night don't need window blinds.