My tire has been completely flat for possibly 4 hours in my driveway before I took notice. I've removed it from the car and will be taking it in for repair in the morning.
Should I insist that a new tire gets installed? All 4 tires are about 6 months old and under full warranty I believe.
My fear is that the sidewall has been compromised.
I believe this is the source of the flat:
A tire is not necessarily damaged by sitting still for a short period of time like 4 hours. Have the shop inspect it and see if they recommend it being repaired, since I assume there is a good reason why it's flat.
If it's a simple puncture and it can be patched and there is no evidence of sidewall damage, I'd keep it if it were mine.
UPDATED: Now that you've added the photo of the puncture, my recommendation is that you change the tire due to the location of the damage. That close to the sidewall is problematic due to the amount of flex that happens in that part of the tire. Chances are good that the tire shop will decline to repair in that area and you should heed their advice and NOT continue to use it.
