Steve -

I definitely can not imagine a 3 hr drive the day after surgery. I had my 1st rib removed 8 years ago and spent 2 days in the hospital. I'd recommend a pillow (or two) to rest the arm on for the trip back. Definitely keep up with the pain meds but maybe ask for something for nausea. Between the anesthesia, pain meds and the long drive, you might not feel that good.

Good luck!