Poked a hole in the wall of my refrigerator. Is it toast?

The "Works" in an RV fridge are all on the back wall. Encased in metal and you would find them hard to damage.

The side walls are just plastic sheeting over Styrofoam.. Just like the disposable coffee cup. Depending on the hole.. If it's just the plastic slap a square of Eternabond over it (They sell 11" by 11" patches) if it goes all the way through the foam insulation.. Well you might wish to fix that (no suggestions as to how)