What Don said. It can be done, but I would not ride it over 30mph to the nearest shop to get a new tube and tire. And watch out for the big trucks on your butt doing 30mph.
I've heard that about HOG membership, I emailed my local chapter about it and never got a reply. Guess I ought to call them. In any case my insurance covers a tow to the NEAREST facility that will fix the problem. Tows (for 20 miles) in my area run around 110 bucks. Clermont Harley (Florida) beat that on my last flat and towed it for 100 bucks. But I did not pay it, my insurance did. Check you policy.