Hey friends. My apologies for not posting sooner. Out of town, busy, you know... typical stuff...
Here is my final update:
Last trip to the dealer they returned the idle settings back to a .3 or something like that. They said they made one other small adjustment but didn't give me much detail. They also are sending an entire report of the problem to the New Jersey office and asking that a regional rep look over everything and then plan to check the car when he is in town. Not sure how accurately I am relaying this information, but in short, they have escalated the problem and are looking to the 'higher powers that be' to help us with the issue.
In the meantime, now that the idle has been changed back, there is no more 'bucking' down the road when creaping in traffic, so I am VERY pleased about that. We have only had a few cold mornings here where I could test out the rough start and crazy idle. On those days, I didn't experience the problem at all, which is weird because we are back to all the original settings that we had before when the cold start was such a problem.
Could it be that I really did get some bad gas for a few tanks? I have switched stations for the last couple of fill ups just for the sake of trying something different.
Seriously, all this headache, all of the help from you guys, and it might have been as simple as the gas station/fuel quality? Nah. Tell me it isn't so.