TLDR: Inspect the car throughly, and document defects early. In my experience, Tesla fixes defects (paint or otherwise) reported soon after delivery. I have not actually experienced Tesla deny fix due to being over 100 miles. And paint has 12 months limited warranty:
https://www.tesla.com/sites/default...sories-body-repair-limited-warranty-en-us.pdf
I live about 76 miles away from the Delivery/Service Center - and like many, I was told about the 100 mile "policy".
Did not know abouth that policy in Dec 2018 when I took delivery of Model 3. Was told about this policy in Sep 2019 when picking up an X, and again in Mar 2020 when accepting the Y at the Delivery Center.
In all 3 Teslas - was able to thoroughly inspect the car once at home. Took video/pictures of defects and either sent an email (to Delivery Adviser) or set up appointment via the app with video/picture as proof. I even went as far as capturing Odometer reading at the time the defects (paint or other) were noted.
Model 3 had 4 inch gash on tire, water in trunk bottom well (found 3 days after delivery).
Model X had non-sensing Falcon Wing Door, defective (random opening/closing) charge port cover, AND mismatched paint (rear bumper paint is off from the rest of body).
The defects on the 3 and X were noted at home, not apparent at delivery.
So far Tesla had fixed the defects I discovered after delivery, and not argue about the car being over 100 miles - maybe because I have proof that the defects were there/discovered soon after delivery.
In this Model Y, I found etched scratches on 2 side windows, cracked rear pillar trim and dirty/grease stained head liner, paint scratch around the rear Tesla logo - two days (about 150 miles) after delivery. The service center have the windows, headliner pillar trim on order and will fix the paint scratch when at appointment.