"Uh, 'cuz if it's gonna be moving again in like five minutes that'd be a huge waste of time and effort? The car would probably get down there way before I could."

She gestures pointedly at the ground and raises her eyebrows at him. Isn't it obvious?

"...Plus, it'd be pretty dumb if I fell and got splatted right before it started back up."

And... not if it didn't, apparently.