My trip odometer freed itself after I hit the reset button several times today. I had tried earlier but I guess it was random.
Several pieces of info may be useful to others.
1)do not reset in motion. I did several times. The numbers lined up better then.
2)Zepco in Dallas wanted $289+100 labor to fix. AC speedo in Arlington quoted $250 total. Jim Cheevers said he was certified for VDO.Anyway I dodged a bill.