What would your plan be once the Ford 5 yr policy is over ? Buy a policy that you will probably research to get opinions of ? Point being, research what you be given for "FREE" as they say.
If a road service policy gives you needed comfort then pick one that includes rv's .
As Klutchdust suggested "what services are on their list of people to respond" and a 'location map' of services. If you travel to remote sections or go off grid, you need a service that will be within the designated response distance, otherwise it's next to useless. If you are in populated places all the time with cell service, then just google a service and call them yourself without paying a roadside service to do that for you. If you should ever need it , pay out of pocket for the road call. I had to use a road service 3x in my 50 yrs of rv life.
Self insure, every time someone offers you a warranty of some kind put that money into your own warranty acct and use it when/if you ever need to. You'll be surprised how your investment grows especially because you won't be using it.