Having considered this scenario further I think we'd all fall into this category:
Oops. I've just dug a very big hole and jumped into it. We are where we are and now we have to get out of it. Options? Only 3. Deplane the pax, hope there is the local rugby team, local sumo wrestling team, local fire brigade and a few lumberjacks on board. Maybe take an hour. Those guys can push us back on the gear. (kid you not; heard about it being done B767). Failing that, get the local fire trucks and some rope on the gear and pull us back Maybe take an hour. Or (as JJJ suggested) a tickle of reverse might do the trick.
I suppose we always teach that digging a hole and jumping in is human nature; it's what you do afterwards that counts: keep digging or get out. It seems, they got out, so all's well that ends well. The message taken away is, "oops, I won't do that again in hurry."
I still would have liked to have been a fly on the wall in the flight deck.