Did a bit of research on the ford website....seems this would not be covered by the warranty. Straight from the book.
ORIGINAL EQUIPMENT PASSENGER AND LIGHT TRUCK TIRES
Including RFT Tires with Run-Flat Technology
ELIGIBILITY
This Limited Warranty covers BRIDGESTONE and FIRESTONE brand
passenger and light truck tires, including RFT and temporary spare tires,
originally installed by the vehicle manufacturer on a new vehicle. You are
covered under the terms of this Limited Warranty if the tire was
produced after July 4, 2004 (DOT serial 2704 or later) and has been
used only on the vehicle on which it was originally installed in
non-commercial service.
WHAT IS WARRANTED AND FOR HOW LONG
Before wearing down to 2/32 inch (1.6 mm) remaining original tread
depth (i.e. worn down to the top of the built-in indicators in the tread
grooves) and within 6 years from the date of purchase (proof of
purchase date required; without proof of purchase date, then within
6 years from the date of tire manufacture), for any reason other than
those excluded in the section entitled
What This Limited Warranty Does
Not Cover,
any eligible tire that becomes unusable for any reason within
the manufacturer’s control will be replaced with an equivalent new tire
on the basis set forth in this Limited Warranty.
WHAT THIS LIMITED WARRANTY DOES NOT COVER
This Limited Warranty does not cover the following:
1.
Tire damage or irregular wear due to:
A.
Road hazards,
including, without limitation: Puncture, cut, impact
break, stone drill, bruise, bulge, snag, etc.