Hi Nensi, hope the stomach has settled and you'll be on your way home tomorrow. I began to eat at the table immediately, but I just happened to have a comfy, small footstool that fit underneath it. Wihtout that, I would've eaten in the recliner with a tray.
I'm sure the staff will show you how to enter and exit the car, but it's really what someone else here just described. You'll want pillows, a dose of your pain meds an hour before the ride, and perhaps an ice-pack if your ride is over 30 minutes. My ride was only 10 minutes and I was able to get into the front seat, but it's a roomy car and I only had one knee done. The worst part was the bumpy roads; aaccck.