..Aside from how this should be done or not done:
I'll be curious to hear if Coachnet actually pays for this tow or not. They may well not, in which case you can expect to have to fork out some substantial $$ to tow a rig this big.
I haven't read all of Coachnet's contract, but I do know that with Good Sam ERS and I believe AAA RV plus also, their contract states they will NOT provide a tow if you are off road. The contract states that they will pay for a tow to nearest repair facility when broken down. That towing coverage does not include towing out from being stuck off road somewhere.
I'm sure they'll still help you get a tow truck company out there to help, but I'd be prepared to foot a good portion of the bill for this.