I assume you're referring to the metal coolant pipe? Any way you can get a screwdriver in there? Maybe a sheet metal screw to plug the hole along with some JB Weld to help seal the screw/hole or maybe you'll get lucky and the JB Weld will hold for your trip home? If you manage to get the aluminum pipe away from the muffler, is it possible to dent the muffler enough to ensure clearance? First thoughts that came to mind. Wish I could offer a total fix suggestion.
I was able to get the bike home yesterday. I stopped every 45 minutes and topped off the coolant reservoir. Haha. 600 miles! Once I get the whole repaired or a new pipe there is a bracket that is used to move it away from the exhaust. The installer failed to tighten the bracket and the coolant pipe slid right back against the exhaust pipe. Thanks for the feedback.