Finally, a couple of weeks ago I am back to driving after my September surprise. Didn't get much troubleshooting done until the drive [cabin fever finally got me in the Jeep seat].
First thing I noticed was the blower was only going to defrost and then she mentioned that the A/C had not been working right. So, 1, 2, 3 I stopped the Jeep, went wandering under the hood and found a vacuum leak at the intake manifold.
After driving around for another 100 miles or so the computer finally reset its little brain and all was well. Now the blower works correctly, A/C does its thing and the low idle at cold start works as designed.
So, 1 4" ziptie on the vacuum connection to the intake and it is fixed. FYI, the rubber vacuum fittings on my 04 look like they are beginning to dry rot and that should not be happening in 8 years. Something to watch out for.