Feel free to discuss this further with your insurance agent when you are on the side of the road and stuck. Please use care and common sense when towing anything. Be safe first!
Alright, i have to say it. The National speed limit for towing is 55 MPH regardless of the posted limits. Also, there is NO towing allowed in the left lane. Please tow responsibly so you do not endanger others.
I would think about the road limits in your State, etc., up here in the Northeast the limit is 8' on many secondary roads and 8'6" on the highways. I guess it just depends on how often you could be stopped and fined (and how expensive). I have a 25...