The FEDERAL FUCKING LAWS we have to comply with tell me that IT is ultimately responsible for everything on that network, so yeah, it ALL runs under our rules or it doesn't run. Don't like it, call your Congressman.
Why don't you tinkerers go re-wire the electrical, change the plumbing, or fuck with the HVAC and see how much shit you catch from that before trying to do something that can get the IT staff hit with millions in lawsuits?
And did you even bother to ASK the IT department about what you were trying to accomplish? I doubt it. Most of us will work with you if you're up front about it and understanding that there are laws we need to follow.