It's an ingenious system, because the sort of package handler who would handle a package roughly isn't the sort to carefully figure out how to reset them, and vice versa.

This is only because the sort of person who would rough up a package and only then figure out how to 'fix' it, becomes a computer programmer instead.

A long needle with a dab of super glue would probably work. It's brittle when it dries, so breaking the bond is pretty easy. Would leave 1 or 2 telltale holes, but you could be careful about where they are.