You can, Vera, but you won't stop her tripping any security in there or making a noise. Unless you were not planning to be stealthy inside the room? If you want to find out what happens if you go in there lacking Intrusion, you can do so the easy way, of course!
You have no idea who the new Librarian is.
It's a code on the door but having a pass card is not functionally different to breaking through it.