Find someone...family, friend, or even co-worker to help you get home and at least check on you periodically post surgery. You don't want to try this alone. Depending on the nerve damage/scarring you may not have much use of your arm/hand initially (or you may be just fine). Start practicing using your left hand primarily now so you'll be ready to do everything with the left for a while.

The only way I could imagine you doing this alone is if they keep you hospitalized for several days until you can fully get around and care for yourself.