Now if only the rulings of the District Court in the Central District of Illinois applied to US federal law. (I'm not a lawyer, and I have no idea how things like that work.) Regardless, I've come to expect such little consistency from the law.
I haven't read the judgment but I would think that the judgment can act as a precedence unless there is a rider associated with it. This probably probably has nothing to do with Federal/State law. The courts are generally very specific about consistency in different judgments.
IANAL but just finished a course on cyberlaw and I remember something about little knowledge and things that are dangerous.