I called Tustin Nissan back, to book my car in for Monday, since theirs was the best quote of the ones I got (my
dealer - the former Connell Nissan - didn't call back at all, nor did the dealer closest to my office). Once again I asked how much, just to make sure it wasn't going to be any more than previously quoted. Well, all of a sudden we're back down to the $34 that Jeannie remembered it to be as of last May, and this guy inadvertently told me the book time as he was figuring it out what it would cost in his head - 3/10ths of an hour, as noted by dgpcolorado.
So Monday it is, and I'm going to have the much despised P3227 update done while I'm there.