I would look for a different shop for your alignment. The place I buy my tires from has a nice computerized alignment rack and I’ve heard several people say that they can’t properly align a vehicle. A friend of mine had them align his 2007 Tundra and it had way too much toe in and trashed his tires fairly quickly.
I aligned my 2016 Silverado twice myself using 4 jack stands, fishing line, tape measure, 12” scale, and a digital level. It has 2-1/2” lift with an Eibach stage 1 kit and 104,000 miles and I have not experienced any abnormal tire wear. The last set of tires were Mastercraft CXTs with 60k miles on them and they probably could have gone another 20k.