Then while he has energy--though stopping short of 2am, if the issue arises--he will work around his Grandpa's farm, with the energy that he apparently still has.

He did a possibly naughty thing, with those fish tacos, and that crate.  Oliver wants to show that he is--not unwilling to play along, play whatever game this is--with whatever put him here, and maybe replaced his body.  A sign of, of not being, recalcitrant.  Incorrigible.  Lest something otherwise take offense, with the amount of power that it apparently has.

Then while he has energy--though stopping short of 2am, if the issue arises--he will work around his Grandpa's farm, with the energy that he apparently still has.

He did a possibly naughty thing, with those fish tacos, and that crate.  Under threat of starvation, he thought, but still.  Oliver wants to show that he is--not unwilling to play along, play whatever game this is--with whatever put him here, and maybe replaced his body.  A sign of, of not being, recalcitrant.  Incorrigible.  Lest something otherwise take offense, with the amount of power that it apparently has.