I dont want to go out on a limb with the armchair psychology, but nothing in his recent tweets, or him supposedly stewing with his sons at Mar-a-Lago, suggests to me this guy is just thinking himself free and clear and returning to his cocky attack mode campaign ways. The guy has tweeted like 20 times since the news dropped, about 15 of them have had to do with Russia, and in an unusual turn, looking mostly like a weak person scrambling to catch any excuse that flies by his ears and posting it. I don't know what that says, but feeling unshackled and mentally at peace that he is out of the woods is not really how I could read any interpretation of the last 48 hours.
On a side note, any appeal to wrestling the guy's phone from him at sensitive moments kinda goes out the window when he flash tweeted further evidence to obstruction to justice, only able to walk it back by getting Don McGahn to claim authorship.