OR...it’s pretty easy to find Lowe’s 10% coupons online that anyone can use, veteran or not. Sometimes they have better coupons active too, like $40 off $200...so 10% is better on that $500 appliance, but $40 off is great for that $250 saw.
Https://www.slickdeals.net is one place you can find coupon sources. Or do a web search for ‘lowes coupon generator’
The coupons are generally only usable for online orders, but you can do ‘buy online pick up in store’ to get around that.