Most shops won't do it.
and if they do, they DEFINITELY won't be offering any type of warranty for the new layer.
Youtube removal tricks--heat is definitely your number one helper to remove old tint. The more heat you use, the less adhesive you will have to painstakenly scrape off.
When called an idiot sometimes is better to be quiet than to open mouth and remove all doubt.
Man who walk through airport turnstile sideways going to Bangkok.