But the 0 - 3 days to the shop was impressive...
Some plastic bit holding in a sensor to the choke decided to not sense something or other and popped on the CEL. The service department was quick and courteous, especially given that I purchased the vehicle on Wednesday evening and the light turned on last night.
I'm not worried. It's a part issue and doesn't appear to be systemic. Part of the issue is that the computers are so $#&* sensitive that they can detect things that might be a problem, but aren't really anything to worry about. In my case, since it's not cold outside, even if the choke controlling piece had failed, it wouldn't have mattered.
A little... irritating, to say the least, but at least the dealership took care of it quickly and even gave her another bath for me before handing back the keys. I still have to get the part installed when it gets in, but they said it'd take only a few minutes. Plus another bath.
*Someone needs to get a better stopwatch. I haven't done any real testing, but I assure you I've hit 60 in much less than that.