That both Sarah F and Andrew were making coded remarks to tip off they were in the know would be characteristic of state operatives.
Has @IloveOwlsandPenguins seen the YouTube clip of Jimmy Savile being interviewed by Parkinson in the 70s? Alan Alda is a fellow guest, watching on slightly bemused. Savile tells a mad story in his scattergun style, about a treat for a young teenager - getting her in to see Prince Philip. He smuggled her in the boot of his car and on his arrival, got her out to introduce her. 'She'll remember that for the rest of her life,' observed Parky.
Now, it really sounds like he was talking about procuring women for Prince Philip and smuggling them in to the Palace - putting them in the boot of the car was the way, I understand, that was said about Princess Diana's paramours, too.
It seems to be the way Savile might send a message out - remember I've got dirt on you, you better play nice. Incidentally, I once picked up a copy of Savile's memoirs published in the early 80s, at a massive second hand book sale in Epsom Methodist Church, of all places. I flicked through it, thinking, well, he's hardly going to mention his sexual abuse of teenagers is he. In fact, he does just that. Talks about shagging a teenage girl 'my seductress' he called her, making out she was doing all the running, in a mobile caravan he had. And it implied she was one of many. He didn't go into details of the sex, but he made it sound all rock n roll. You'd be a spoilsport to object, that kind of thing.
In Miles Goslett's (sp?) acclaimed book A Convenient Death, well reviewed by the mainstream media, about the death of weapons inspector David Kelly, a similar thing is referenced on a govt website - a strange, incongruous mention of paedophilia, as if to tip someone off not to make a fuss about it, or we will go after you with paedophile allegations we've got against you. You can figure it out for yourself, it is one hell of a book because you have to puzzle things out for yourself - but the author does leave clues. But yes, leaving coded messages as if to say, hey, remember yourself, we're in the same club, seems to be common enough.