Well I'd say its stressed to no end now, rather on its last breath so to speak.
If you were to still have it in the tank without it dieing overnight then I would try it, with the water change you did perhaps it might respond. IF you get those lights then perhaps it can remain on life support till it can recover.
Part that worries me is that the mouth is gaping now.
Also never place it on a dry towel, wet it first.
Thomas