If you have tires under warranty and aren't near the shop that installed them, most of the time it can be plugged and the warranty won't be voided.
Tire warranties are a big ass racket... I used to sell them online...
Like for example. If I blew one of my tires I bought last month and have about 4,000 miles on, Goodyear would look at my tread, see evidence of off-roading, and void the warranty.
The tires are intended for on and off-road use. (and did extremely well, I might add)