How to programmatically close Google chrome developer tools if it is already open?

I have disabled Google chrome developer tools on website. However one can still access it using below methods,

1. Open another website say www.google.com
2. Press F12 -> Developer console will open
3. Visit my website -> Bingo chrome developer tools are now able to play with my website.

How can I disable this behavior ? How can I close Google chrome developer console if it is already open ?