The continued use of UAVs to invade privacy will create (has created) the need to review current law. A change is required due to unforeseen misuse of what is essentially a toy. Big boys toy but yes, a toy. Being the high point of the election cycle it will be touched on eventually. Whether any meaningful change will result remains unanswered.
Very often, technology out paces current law. It happened with computers in the early 90's when there were no laws pertaining to theft by/from a computer, hacking or any other crime which in which a computer was the instrumentality of the crime. Sooner or later State and Federal Law will catch up with the new toys.