ID is just Creationism with a new name and a botched face lift. It is not disguised as science because it does not even resemble science.
It is a warped caricature of science. ID has no theory that can make predictions or be tested. The whole purpose behind ID is to attack a bogus definition of the Theory of Evolution. You cannot use ID to carry out scientific inquiry.
The only useful place it has in the classroom is as an example of pseudo-science.
What if Eleanor Roosevelt had wings? -- Monty Python
You can't build a Time Machine without Weird Optics -- S. Valley