One of the reason I bought new truck when going on retirement and planning transcontinental vacations was the warranty the manufacturer gives you.
All those RV towing insurances have good or worse reviews as that comes to actual person doing the service.
I never had to do it with TC, but in construction business I had my truck broken with tall load.
Local Tow Truck driver knew his area and after putting my truck on rollback - drove the route, where 15' height was not an issue.
That was in Reno, NV where they had rollback with payload above 15,000lb.
I know such big rollbacks are not common.