Not with one tip up and one tip down, but it could be possible to ferry with BOTH tips folded, or removed, if Boeing has tested it. A scenario might go like this:

1. Airline can't get one wing tip to unfold, or the tip gets physically damaged somehow, at a location where required equipment is unavailable.
2. Airline contacts Boeing customer support (why not; they have nothing to lose by asking) and asks if they can get an authorization for a non-revenue ferry flight with both tips folded or removed.
3. There will be an internal discussion within the Boeing engineering/test/customer support organizations. It'll depend on whether Boeing did any experimental flight testing to document the airplane's behavior with tips folded or removed. If not, it will probably end there and the airline will have to fly facilities to the airplane instead of the opposite.
4. If they have test documentation that demonstrates that airplane can be flown safely with the tips folded or removed, and the engineering heads who have to sign off have done a risk evaluation and are comfortable (and their relevant FAA counterparts are ok with it), it's theoretically possible that Boeing could issue a one-time ferry permit with a list of operating limitations (such as weight, altitude and speed restrictions). My guess would be a flight with tips removed is the most likely configuration to be authorized, if at all.

I'd be surprised if this sort of thing hasn't already been evaluated within Boeing and has been determined to be feasible or not feasible. Only someone within the Boeing engineering organization would know.

Not with one tip up and one tip down, but it could be possible to ferry with BOTH tips folded, or removed, if Boeing has tested it. A scenario might go like this:

1. Airline can't get one wing tip to unfold, or the tip gets physically damaged somehow, at a location where required equipment is unavailable.
2. Airline contacts Boeing customer support (why not; they have nothing to lose by asking) and asks if they can get an authorization for a non-revenue ferry flight with both tips folded or removed.
3. There will be an internal discussion within the Boeing engineering/test/customer support organizations. It'll depend on whether Boeing did any experimental flight testing to document the airplane's behavior with tips folded or removed. If not, it will probably end there and the airline will have to fly facilities to the airplane instead of the opposite.
4. If they have test documentation that demonstrates that airplane can be flown safely with the tips folded or removed, and the engineering heads who have to sign off have done a risk evaluation and are comfortable (and their relevant FAA counterparts are ok with it), it's theoretically possible that the FAA could issue a one-time ferry permit with a list of operating limitations (such as weight, altitude and speed restrictions). My guess would be a flight with tips removed is the most likely configuration to be authorized, if at all.

I'd be surprised if this sort of thing hasn't already been evaluated within Boeing and has been determined to be feasible or not feasible. Only someone within the Boeing engineering organization would know.