That's not an option. As mentioned before, the whole point of this run is to have that screen as full 0s. To do that is to admit defeat.
But you know those kills weren't you, so whats the issue? If there were online leaderboards, then sure, I understand the issue, but this isn't online, so the only one who cares about the numbers is you, and quite frankly, you are over reacting over a tiny tiny issue.
Keep track of the kills that aren't yours, subtract them from the totals at the end of your challenge, and if the net result is 0, congratz, you won!