"Suffering punishment and imprisonment will not come from the Federal Government."
You must have a crystal ball because the efficacy of a self-pardon is not a foregone conclusion. The D.C. Attorney General is under the jusridiction of the federal government and he's investigating the speakers who ginned up the crowd before the Jan. 6 insurrection, which include trump. The feds will also be interested in his recorded phone call to the Georgia Sec. of State in which he begged for votes as well as his attempt to coerce Pence into unlawfully overturning the election results. He's nowhere near out of the woods with the feds.