Sorry Amigo, but if you we're to get stopped for being over the 65' limit, they would probably give you two options: disconnect the toad, or ask you to do an about-face and head east. Hopefully you would not also get a ticket as an added bonus!
That being said, if you are somewhere close to the limit, and don't draw attention to yourself in some other way (like exceeding the 55 mph speed limit) then you probably would not get stopped in the first place. If you're upwards of 80' like some might be with an HDT, 40' Teton, plus drawbar and toad, it could be costly!
I think I need to get a 39' toy hauler and one of those Smart cars to stuff in the back!
Take Care!
R