I doubt it will do much harm, the oil does lubricate as well as damp so if no oil is in there it might cause the sliders to wear a little bit (make sure Honda check the sliders). I would be more worried about getting oil on the brakes and the subsequent loss of braking!! If you keep the speed down, (55mph or less) I would think you would be fine, I would try to pick a time when the roads are not too busy and I would stop every 15 minutes to wipe any oil of the forks and away from the brakes.. I would even consider tying a cloth around the lower fork leg to soak up the oil for the ride to the dealer. If it was my bike I would ride it there as getting a trailer is a hassle, but a trailer is definately safer..
Gary