This is actually trivially automatable. First of all, brand keywords are something Google supports explicitly for this kind of targetting so they know from that direction.
More generally though, if you paid for an advertisement and the natural search result has you first anyway, then you should not be charged for any clicks to this advertisement.
More generally though, if you paid for an advertisement and the natural search result has you first anyway, then you should not be charged for any clicks to this advertisement.