Bail and the cumulative total of fine amounts are decided by a judge, not by a sole officer.
It oh so happens that Inferno Cop knows a really good judge. He can get him on the phone asap. But proper procedure is a thing, and grand theft is not a civil charge and would involve a criminal trial. This is where bail comes in, one Satoshi can pay. He gets a trial date, he pays bail to the judge, he can wander in between trial sessions.
We'll make an RP scene out of it.
And really, for identification all Inferno Cop needs is a badge and a badge number, mostly if he's making an arrest on an active criminal. Which by technical accounts, he is.
...Which is all stuff I should be saying in the RP, I guess, though you ought to know this OOC as well.
And he has stolen land. And Mike, there is a normal police force as Elf said earlier, so there must be a criminal justice system as well.