Too bad someone can't store it for him, but the bill may now be higher than bike is worth. Or he would like to pay.
He may be better off letting someone else buy it off the storageholder. They will try for full price out of the owner.
But in reality , they will usually settle for less , or take the vehicle .
A guy I know has a bodyshop, he has had several vehicles left there. . They are allowed to charge storage prices that are quite high ! The bank walked away from a 4 or 4 1/2 year old truck that was keft there.. it got dropped off in front of part of the shop.... sat there for a month before they looked into it. Turns out the guy that had the truck died, looks like someone drove it for around a month, then left it there. ..