Followup/closeout on this...
Unit was returned to me today January 25th after being received by Uniden December 29th. Just under a month...but in all fairness the New Year's holiday was in there as well, which probably added a couple of days.
After a little testing the repair seems successful. The headphone jack now seems a bit stiffer than I remember it being when I sent it away. Tried three different headsets and they all feel just a bit snug. Could be a good thing if the jack is more rugged.