> you should never go rouge like this because if you don't pull it off flawlessly you will be terminated
Live a little; they knew the risks going in and were convinced it was worth getting terminated. I have staked my employment on things I strongly believed in before. The corollary was I wouldn't want the job anyway, if the organization disagreed.
The time when I need to "slip the code into production without anyone catching on" is the time I know I need to move on from a company.
This isn't an action movie, it's a business, the business has procedures, if you don't like them, either try and change them or leave, you should never go rouge like this because if you don't pull it off flawlessly you will be terminated.
Even if you succeed, it will be recorded in your file and wheeled out if they ever want to turf you for any other reason they feel like in the future because now you have a "history"