The only way a time delay would work for me is if 1/4 of my monthly supply was Shipped to me, each week.
The size of the safe needed to keep me out of my own supplies would be prohibitively large.
Maybe something like an armored Vending Machine: but full of happy goodies, that were time released would be an option:
And like I can only access morning meds, evening meds, but that's it.