We asked the same thing about our '95 Honda Accord. The dealer gave us an internal Honda memo stating the car could be towed four wheels down if you followed the proper procedure.
Been using the car for 8 years with over 10,000 miles being towed. No problem. Tried the Roadmaster brake system for a bit. Then figured since we were so lightly loaded in out 35ft Bounder @ 18500lbs, the brake system on the Bounder still has enough capacity. The Roadmaster worked well, but had a few glitches I wasn't comfortable with so we don't use it anymore.
Will suggest you remeber to turn of the radio, and HVAC controls to keep the battery in good condition. Also remember to turn car off at end of day. We pulled into a campground pull-thru one evening. Did not need to unhook the car, and forgot to turn the car off. Needed a jump the next morning.
Good luck. We haven't had a bit of trouble with the car in 8 years.