When we first got a coach i called florida epass (works with sunpass) on how i should precede as we will be towing a car with the motorhome. I was told to just put my transponder on the MH windshield. Whats listed on our account is DW's main everyday day car that was first on the account, then the MH, then my truck. I don't have either of my 2 motorcycles listed. I now travel with my truck as the primary toad with a harley in the bed. Now they can't see my MH plate because of the truck and bicycles on the back of the MH. They cant see the truck plate because the tailgate is down for the MC.
We just finished a trip to the keys from central FL. using many miles on the florida tpke toll road and i was quirious what they used to charge for the tolls. To my surprise it was only my wifes daily driver the Ford Fusion. I'm guessing it was the first and main car on the account so thats what they used.
No extra axel charges and i'm not questioning why.