This "command" was given to Adam, along with a number of other directives. If it was written to me, I would attempt to comply. Using your hermeneutic you probably have already started on your Ark, right? After all, it is right there in black and white. Audience, my FRiend.
So I take it,
“You shall have no other gods besides me” is something you don’t have to follow because it was a command given to Abraham?