Originally Posted by
markhr
I was going to say...
put balloons in pocket, inhale the He, hold breathe, cycle like a mad thing until arrival at destination, exhale into balloons, call ambulance
...but I won't

I was going to say breathe in the helium and bike there and blow up the balloons after. No breath holding though.
MT balloons and a small he tank is what I would do. Or drive.