My experience last week was very different from you. Store was packed and the 5 cashiers were working non-stop. This was on friday 20, Irvington Road, Tucson Store.
Big money knew the 33% jump in a few days and the 17% jump in a day was too much. I am not worried at all, it will resume it´s upward movement .
" I have purchased three batteries for my car in the last year, and none lasted more nthan 9 months" What?... Noooooo, I don´t think so.