I wouldn’t worry about , I tinted my first Motability’s car windows , it looked crap without them! and I’m about to tint my current cars windows
most sales rep wouldn’t have a Scooby if it came standard or not , nor would they care
it’s going to make the car a lot more desirable sitting on a forecourt
I also enabled the boot to be closed using the remote fob, and the wing mirrors to automatically fold again with the fob using OBD11 this was about 5 years ago and Audi would have charged over a grand to unlock these features , so whoever got my first car got a few extras chucked in for free!
i can understand removing them if they were bright metallic pink or you had powder coated the alloys screaming green!
but standard black tints? No chance , like you say they make the car look nicer
it’s not the 90s anymore where tinted windows were only found on drug dealers cars lol
On my first car I did say to the dealer that I had tinted the windows and his response was something along the lines of “Great it saves us doing it”
so I wouldn’t give it a second thought mate