WB, I can see that goal, and in that specific situation, that'd be the right call.
In the situation being discussed, though, where the climber has had two failed attempts, I'm looking at it from the standpoint of what can he do to maximize his chances of FINALLY getting on top of the ol' rock.
Also, people certainly vary, but I'd much rather try that drive after a very strenuous day, having gotten a full night's sleep....with only a few hours, for me it would be a major struggle to drive. Nap on the side of the road! Certainly nap after Portal snack!
However, main thing was increasing chance of summit safely, was what I was thinking.