I put metallic tint on my back and side windows with great results. When I tried putting ceramic tint on my windshield a week later the car would not turn off when I got home. I took the car back to the dealer where we took off the windshield tint and had to reset 16 codes. Didn't make a bit...
My concern is that a thief might use a tow truck and carry my Leaf to a chop shop for the batteries. I never could get a replacement cost for the batteries, but would estimate them to be over $10,000.