If you cannot get them, then I would report the hospital and doctor to the state medical board.
Your HC dosing is also, IMHO, wrong, as it does
not follow what a normal body does
- and normally one would take the bulk in the morning, and then lesser in the afternoon, and none at night so one can sleep. I would not drive while on pain pills.
You will feel normal again, but you are healing from a major surgery so take it easy.