Avoid all that and go to your local America's & Discount Tire shop, and ask for their lifetime rotate & balance with roadside hazard warranty.
I paid less than $200 for this package on my Rebel, it includes not only free rotations, but balances, which most dealers don't do. Most dealers charge $50 just to rotate, nice to take that off your service bill.
It also includes road hazard insurance for my expensive OEM Duratracs. Anything that can't be patched will be replaced free of charge.
Discount Tire/American Tire will put this package on any set of tires purchased there or not, regardless of the tread left. Obviously it doesn't make financial sense to do this on old tires. But as you can see, it pays for itself after just 4 rotations and you still have the remaining lifetime of your tires of free rotations & balances while also insurance in case your tires need to be replaced by a road hazard.
I put this package on all my vehicles and it has never not paid for itself, in some cases, a couple of times over.