The system is designed so that each crime breaks multiple laws, and the laws are easily broken. Keira Wilmot faced multiple felonies, for example. She broke the law when she didn't immediately report her crime to the authorities.
The video I linked discusses this very issue for a few minutes starting at 5:20.
At 6:55 he talks about how possession of a lobster can be illegal: "It doesn't matter if he's dead or alive. It doesn't matter if you killed it or it died of natural causes. It doesn't even matter if you acted in self defense! Did you know that? Did you know it could be a federal offense to be in possession of a lobster? Raise your hand if you did not know that. [audience raises hands] There's the problem!"
The whole video is witty and informative, and IMHO definitely worth watching.
