Hi Alfred,
First of all - congrats on your surgery date! I really hope everything goes well for you and that the coordinating part of things goes as smoothly as possible.
Next, you probably already know about this, but as far as transportation goes, is Uber and/or Lyft an option for you? I use them ALL the time and find them incredibly reliable and a great way to travel. Lyft offers better rates but sometimes doesn't have as many drives available. Both offer first-time rider discounts, though. Feel free to private message me if you want any more info on them. I use them all the time.
I'm an 8.5 year gastric bypass post-op and I've got a couple of suggestions that may or may not help with the cravings situation. They worked for me, but some people may think they're a bad idea. It really depends on the individual, I think....but I thought it was at least worth mentioning.
I kept sugar-free popsicles, fudgicles, and Jello in the house. If I absolutely HAD to have something, I knew I could have one of those without completely ruining things. As long as you think you can handle it without binging, that might be a good "save" just in case.
The other thing that worked for me was...watching food. I watched the Food Network and cooking shows. It kept my brain occupied in a different way with food and I was distracted so I didn't think about eating because I was watching it instead. I love to cook, so watching shows like Chopped and Barefoot Contessa and can keep me distracted and engaged and out of the fridge. If you have On Demand or something similar with your cable service, you can find those shows on there at any time.
I don't know if those suggestions will help, but I hope they might. Either way, I wish you the best of luck!