Well you can upload to your phone but we have discovered that a hard copy is faster to get through the terminal. So we have our passport, vax card, boarding pass and negative test that we can just show (being seasoned citizens it just works better for us and as I said faster.) You will be showing the negative test about three times during the check-in process. Now you must upload your vaccination card online to your health check-in from the app.
As far as parking if you may go around and unload you luggage then park at any terminal in Miami.
I am diabetic also but do not recall there being any sugar free juices, I will defer and say the previous poster is correct but having your back up plan gives me an idea!!!
35 dollars for a bag of wash.
Yes on the room service a fee.