Hey, I grew up in NH!
They haven’t actually got too many criminals up there, I imagine in part because if their prisoners are punching out license plates they must be thinking, ‘Yep, NH really does a good job of protecting individuals’ rights and freedoms from those who would trespass against them!’
You obviously had a much better class of criminals in NH than we do down here... ours aren't really much into contemplation of high concepts... /grin
Having to make license plates stamped with "Live Free or Die" would mostly just tick them off... /grin