Well the trip is long over but I was in the garage today and found this.
It's the sprocket I limped home on.I didn't realize how bad it was trashed til I had it off. 23 nubs where there should be teeth.
I was adjusting the chain daily on the way home from Louisiana on and I had felt the chain slipping . I guess I was in denial of how bad things were getting and making up other reasons for that feeling.
Anyway , I feel lucky not to have had the chain come off and do damage.
Next time I'll do better. Maybe.