I think if I had my "ditch vest" with me, I might consider hiking out on my own. Depends on the season, situation, and how far away I was. If I had a map and knew where a camp or station was, or a compass and knew which direction a roadway could be found - should be doable. You've probably got some fishing supplies in your ditch vest. Finding water won't be a problem. Hopefully you don't have any wide lakes to cross. Narrow ones you can cross in good weather by building a quick raft propelled using a long pole as a paddle. Even if you don't try to catch food you can probably walk out in three, maybe four days.

It all depends on the specifics, of course. But I think walking out on your own may be a real possibility worth considering in this case.