Took the car to the dealer today, and without beating myself up too badly, its safe to say that
Hemi Knowledge > me 
My wife's Charger R/T has the same RPM at idle when hot and A/C not running (and in Drive). At the Dealership, the Tech hooked up the Scantool and could find no codes stored, and said everything checked out ok. Then, the Service Manager and I logged a few miles in the 'C' making sure I was satisfied with their findings.
I honestly think they loaded some Hemi mojo into the C today....I took it out and ripped off a few sub 6 second 0-60 times tonight. And when I did my last run, I yanked the time below out of my butt.....I'll probably never duplicate it again.....but it brought a big ole' grin to my face.
Conditions were: Temp 65F, Level road, 1/4 tank of gas, stick mode, ESP off. The only "mod" I have at the present time is a Mopar drop-in filter.
