CoachNet! We have had coachnet for many years and have been very pleased with their service.
They will provide technical service and talk you through a repair if you desire. The will also dispatch a mechanic if you feel that is the best option. They will also send an appropriate tow vehicle and if that requires a huge flat bed wrecker they do it. They will call ahead and make an appointment with the appropriate facility in the direction of your travel regardless of the distance. They also call to confirm that the repair and tow have been successfully completed.
Have had the benefits of their service several times, always satisfied.
I have frequently called their technical people with questions when making repairs or trying to diagnose a problem. Lot of service for $109 per year.