They will price match, but they may give you a hard time about it.
First, the match must be done to a local competitor. I can't do Kragen's match because there are none around, but there are Pep Boys.
Also, the first store I went to the clerk did not know how to do the price match. The second I went to the store manager said they can not price match oil, the register will lock them out if they try (which is a bunch of crap). I went to a 3rd store, which said they could do a price match, and they only had the M05 bottles (I am not sold on the amber yet). I went back to the first one and the store manager was there and he did it no problem, bought all 12 of the GC they had, left 2 M01 bottles on the shelf. I have 1 more coupon and 2 more stores to check out.