"The GM made me do it."
If that's actually true, of course you should be pardoned. No one should be convicted simply because the GM wrote that he or she did something naughty.
By this logic, everyone involved in the "civil war" last year should be pardoned, since in every "rebellion" or "revolution" before that, claims about killing people and overthrowing the government were completely ignored. If the Cabinet can pick and choose which of these actions are actually real, this game becomes even more of a joke. In my view, unless someone in a position of actual power (such as a governor) commits an act of treason in this game, they should just be ignored.