>>149297192 (OP)Writers who know Superman is a boyscout like to poke at this sort of thing, but realistically if a being as incomprehensibly powerful as Superman showed up and started throwing people in jail, most people wouldn't test his morals.
Anyway the answer for those like OP paying more attention to how witty they imagine they can be than the routine plot is Clark Kent and Lois filling in the details to the authorities.
>B-but due processIf Superman had to get involved with your arrest no one's going to play along with legal minutia so you're let out long enough to activate your doomsday weapon or whatever.