I bought no paint protection or rust inhibior or any other add on the stealership tries to rip you off with. I didn't even let them try and offer anything to me. I told them flat out I don't want any extra so save your breathe. Bastards still snuck in $200 for Vin etching on the windows and I signed it. Dam they are good sneaking those papers in there

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Reason I declined is because I had all those protections on one of my nissans and everytime I had a claim they found a way to not have to do the repair under the warranty. For some reason I'm betting the paint warranty would be the same and If I did have it and brought it in they would say it was from a rock chip and normal wear is not part of the warranty. That the paint only covers factory defects etc.
If you ever do have to use that warranty please post up your experience in here for me. My goal for the car was to keep it as cheap as possible. And if I was to get all the extra's they wanted to sell me it would have increased the cost of the car like 40%.