Assuming these things can’t climb… but I sure as hell don’t have any better ideas.

[So sure, higher ground sounds great. Once he sets down that crate, she helps him get it nice and wedged up against their impromptu barricade. The doors rattle a little worryingly, but it holds for the moment. Might as well jam one more crate in there for good measure.

She glances around the empty little shop they’ve taken refuge in even as she starts nudging the next crate.]

Maybe they’ve got a back exit or something?