Unusual, BUT, it probably wasn't aligned after leaving the factory. The chassis are aligned when FR gets them. However, there are a lot of things going on during assembly that could throw the alignment out.
I just bought 2 new front tires for my 2010 378TS due to "cupping" on the outside of the tires; worn down to tread level, but not worn out......15,000 miles on mine. I want good tires, especially on the front. Back tires were still OK.
I got the new tires from a OTR truck tire company in Flagstaff, AZ. and had them do an alignment also. Guess what?........the toe in was out by 3/4 inch. They used Bee Line truck alignment equipment.....$150.00 for the alignment.
Pete and Patty
2010 Georgetown 378TS; 2012 4dr Jeep Rubicon
1 Yellow Lab (hers);1 Little Bitty dog (mine)