Bob,
I also have the ERS service and they are great, changed from AAA.
Question, why didn't you drive to an off-ramp?
Years ago, I used to drive trucks and having a flat was pretty common, especially since the company typically took the old tractor tires and put them on the pup trailer. Changing an outside tire 10.00 x 22 was a snap as you found out. Block of wood, no jack, 2 inch lift....
Hint. Hint. Sharon.
You know, Santa may drop off a lug wrench in your stocking, might save you some frustrating time sitting on the side of the road.
Glad it all worked out well for you, and looking forward to seeing you in Shasta.