Yes, that's the point I'm making. Omniscience doesn't inherently mean free will or predetermination.
Omniscience doesn't equal double predestination. It also doesn't equal free will.
More steps are involved.
And my point is that God knew you'd go to that grocery store even before creation. Had he NOT started THIS CREATION, then you would not necessarily have gone to that grocery store. But, since He did create THIS CREATION, that means your going to the grocery store has been locked and loaded just waiting to happen from the very beginning.