This guy does realise that he still has to go to prison, right? But, also, those taxes only DID pay for you know, his food, medical support, etc. Apart from dehydrating, starving and possibly bleeding out if he gets hurt, he's fine.
Plus, house arrest is still possible. Oh but you didn't pay your taxes for your house? Well then I guess prison IS your only option, because you don't have a house to stay in, nor go back to when he finishes his time.