They'll probably be fine.
I bought a rose once in a 5g container and couldn't plant it because it was raining. I set it amongst some others where it was to be planted and completely forgot about it until the rains subsided and by then everything around it had leafed out. 3 months later I discovered it had grown through the container and into the soil...so I cut away the container and built a wooden planter around it. Didn't want to disturb the roots by pulling it up. It looks silly when they're all dormant, though !
