Hint - Key on Pole

You might have noticed that the pole is very long, and ends inside a clear plastic tub. And it has only a slit opening where it ends in the tub Inside that tub is a key. However are you to get the key out? Not by trying to flip the entire contraption through the air. It was fiendishly designed to make that all but impossible. Give upon that. Right Now.

Instead you might need a to pull the key through that slit. Because pushing ain't going to work, right? How? If you had chewing gum you could try getting some in there and somehow getting the key to stick to the gum, then pull that out. Did you bring gum? No?? Too bad.

What else might grab onto the key. The metallic key. The ferrous metal key. Hmm... There are likely some items to be found in various locked boxes that will make that entirely possible. Even if not as fun as sticking to gum. Keep gum handy for next time.