Rob_L,
I wouldn't have a clue who this woman is so certainly would not pass her if I were a check-in agent.
She sounds something of a plastic 'personality' anyway from what others have written in this thread.
If you are going to allow so-called celebrities to break the rules because check-in agents should know them, then the same thing should apply to check-in agents' relatives, friends, acquaintances and anyone else they might know by sight: which is clearly as ludicrous as allowing the likes of Ms Tomkinson or whatever her name is through on the nod.