Yes. God did rest on the seventh day from all His work. First, because He ceased from creating new creatures on that day, for, as said above (Q73, A1, RO3), He made nothing afterwards that had not existed previously, in some degree, in the first works; secondly, because He Himself had no need of the things that He had made, but was happy in the fruition of Himself.
Septima die requievit ab omni opere. Primo quidem, quia die septima cessavit novas creaturas condere, nihil enim postea fecit, quod non aliquo modo praecesserit in primis operibus, ut dictum est. Alio modo, secundum quod rebus conditis ipse non indigebat, sed seipso fruendo beatus est.
Hence, when all things were made He is not said to have rested "in" His works, as though needing them for His own happiness, but to have rested "from" them, as in fact resting in Himself, as He suffices for Himself and fulfils His own desire.
Unde post conditionem omnium operum, non dicitur quod in suis operibus requievit, quasi eis ad suam beatitudinem indigens, sed ab eis requievit, utique in seipso, quia ipse sufficit sibi et implet desiderium suum.
And even though from all eternity He rested in Himself, yet the rest in Himself, which He took after He had finished His works, is that rest which belongs to the seventh day. And this, says Augustine, is the meaning of God's resting from His works on that day (Gen. ad lit. iv).
Et quamvis ab aeterno in seipso requieverit, tamen quod post opera condita in seipso requievit, hoc pertinet ad septimum diem. Et hoc est ab operibus requiescere, ut Augustinus dicit, super Gen. ad Litt.
Rest is here not opposed to labor or to movement, but to the production of new creatures, and to the desire tending to an external object.
Requies non opponitur labori sive motui, sed productioni novarum rerum, et desiderio in aliud tendenti, ut dictum est.
Even as God rests in Himself alone and is happy in the enjoyment of Himself, so our own sole happiness lies in the enjoyment of God. Thus, also, He makes us find rest in Himself, both from His works and our own. It is not, then, unreasonable to say that God rested in giving rest to us. Still, this explanation must not be set down as the only one, and the other is the first and principal explanation.
Sicut Deus in solo se requiescit, et se fruendo beatus est; ita et nos per solam Dei fruitionem beati efficimur. Et sic etiam facit nos a suis et nostris operibus in seipso requiescere. Est ergo conveniens expositio, ut dicatur Deus requievisse, quia nos requiescere facit. Sed non est haec sola ponenda, sed alia expositio est principalior et prior.
God indeed "worketh until now" by preserving and providing for the creatures He has made, but not by the making of new ones.
Deus usque modo operatur, conservando et administrando creaturam conditam, non autem novam creaturam condendo.