So, I was looking at my car earlier and noticed a bunch of fine lines developing under the Lamin-x headlight tint overlays that I had installed a few weeks ago. Upon inspection and removal, they appear to be stress fractures to be due to excessive heat...I live in California and it doesn't even get that hot here...
A quick google search indicates that I am not the only one. Luckily they're not all that visible and more towards the sidemarkers. I do not recommend anyone to install these for their headlights. I even paid $100 and waited for 3 hours for a shop to install these...