Walking the Cervix

So, have you heard of the posterior cervix that needed a walk...Alright, seriously.
Friday, Dr. M. had to do a pelvic exam on our L&D patient, 2 weeks post dates, to determine whether the cervidil was working to ripen her cervix. The problem? He couldn't find it.
So here we sit, mom with Dr. M's fingers inside, he, looking off in the distance, strangely, like he had been taken over by some alien mind control. After minute three, I'm beginning to feel uncomfortable and start burning holes in the side of his head with my gaze.
"So", says nurse J., also bedside, "feeling anything there Dr. M.?"
"Well, it's a 2... no a 3... maybe a 2," still hypnotized.
Nurse J. waits for maybe another 2 minutes, "So it's a 2/3??"
He withdraws. Talks nervously and red-faced about the amazing disappearing cervix.
The fact is, at this point, how accurate do we need to be?
And hasn't Dr. M. heard of walking the cervix, wherein when a cervix is remarkably far back (especially an issue for a first time mom) one can find the edge of cervix, placing one's finger inside and gently move it forward?
Seems better than mining for it.