I was enroute to Denver when mine happened, I had it done in Denver. I found them by calling a mobile AH service guy, he gave me the recommendation. AH lists their authorized service, including mobile repair. Pick an area you have some time in and get a recommendation from them. It took about a week to get me in so I made a appointment in Denver passing through IN. I called several AH repair places in the Front Range and the same name came up. Sorry I can't be more specific.
Jim and Jennie, Cats=Bittles and Potter, 2000 Dynasty 350 ISC
2013 Silverado 4x4 Towed with R1200GS in bed.
PROV23:4 Do not wear yourself out to get rich; have the wisdom to show restraint.