I still tow my liberty w/o brakes, mainly because there ain't no good, easy and inexpensive way to do it. And it hasn't been a problem, except I do drive a little more defensively thinking that I mite not be able to stop quite as fast in a panick situation,
And if our "united" states can't get any more united on their laws than what they are, knowing that there are millions of interstate travelers, then I couldn't care less what the law says. Besides that, the braking law is not inforced in even 1 of the states as far as I can find.
I still like towing on a dolly, mainly because of the braking simplicity, amongst other things, but sold mine when I learned my 4wd could not be dolly towed.