You can't.
God created the mathematical foundations of the universe. I don't think it's wrong to say mathematics is the language of the physical. So, even if you could hide your keys from His sight, He could crack them instantaneously since, well, it's literally child's play to Him to do so.
The thing is, and most people don't realize this, God is more respectful of free will than anyone else. If you want to pretend that He doesn't exist, He will respect that. I don't think that's good for anyone to do. Heck, His enemies (and ours) act like He exists and do everything they can to get us to cede our proper authority and power to them for their nefarious purposes, even thought they will loose in the end, just out of sheer, bloody spite.
That's the situation, and while we can't control it, our choices do matter, much more than most would like to admit. (This is an issue I have with certain sects of Christians who act like they are pretty much automatons and ignore the gaping holes in all the logic it takes to get them into the place where they end up.) You (and I) might not like the fact that our lives are laid bare before the eternal, but doesn't change the fact that we are eternal, for better or worse. I do believe that siding with The King in this case is the better option. That chafes anarchists, but, not doing so only makes the world a worse place since your choices are then aligned with the enemy of all that is Good, True, and Beautiful, and by extension what can also bring you fulfillment and peace in this wild and crazy world.
