Well newsflash, maybe you shouldn't let eggs sit for a long period of time. Anyone with common sense would clean it up right away and if you get your house egged you take pics and then clean it up. The neighbor got Justin (allegedly) on video egging his house, he had time to take pics and videos of the eggs for evidence and then clean it up. Not leave the eggs there.
Sorry, but since when is it a victim's responsibility to clean up the mess your attacker made?