Riddle
I liked your analogy but you made a fundamental error in your logic. The error you made is that you tried to understand the existence and action of a supreme being (God) from a normal context. You are interpreting things based upon the undesrtandings you have. The counter argument is that God could have a more complex presence than you think.

Case in point, when we didn't have Newtons and Einsteins, our understanding was limited to earth-centric model. Everything revolved around Earth and that's how we understood our universe. Why do we have day/night? Because Sun revolves around us and moon follows path. But with enhanced understanding of theory of relativity and a better picture of universe, our theories have changed significantly. But who is to say that we have reached the ultimate limit of the complexity of the universe? There are still many things that are not answered and it might need understanding of another level to explain/justify those mysteries.

God, I can argue, is omnipresent in another level/dimension. Universe was created millions of years ago, so our frame of reference of time is really big..yet every millisecond can make a difference and should be counted for. God, then can comprehend time difference of such a big magnitude, he can contexualize millions of years as well as a nano second. In similar fashion, maybe he can comprehend and influnence action in a speck of dust to a giant galazy. Maybe, just maybe, our compreshension is not mature enough to understand how things are carried out by the Supreme being?

I am not saying this is right or that's right, I am just pointing out a flaw in the approach you have taken.