I think I found "the good way to do it" early enough, if not the very first time I rested. But it's not the first post I read from someone who didn't figure out that you can leave though the bedrolls. So this is probably an indication that :
a) The game needs to do a better job at teaching players how to play it.
b) The idea of leaving the camp by clicking on the bedroll again isn't the most natural one.