I ended up just going with another OE style AGM battery that I picked up locally. Its my wife's car and I don't want to be getting a call when she is somewhere else asking 'what do I do now?'.
I know you already bought a battery but for future readers I had good luck with Optima Yellow Top batteries. The stock batteries in the 05 and 09 both died at about 5 years old. I replaced them with an Optima and they were still going when I sold the cars.