nelson - It's not what I'd call a good endgame - too many leaps - but there's a certain logic to it that, as you say, can't be coincidental.
muraria - There's a similar storyline in an old Sherlock Holmes film (but this really must be a coincidence). Unfortunately, there isn't sufficient detail in the wiki entry, but there is in -
'Sherlock Holmes: The Basil Rathbone Years & Other Films' by Scott Palmer (I've got far too much time on my hands at the moment).
I wouldn't want you to waste any time on it, so here's the gist -
Holmes disguised as the scientist Frederic Hoffner is kidnapped at an address on S S by Moriarty's thugs. As he's driven away he manages to leave a trail for the rescue party to follow.
I'm not spending any more time on it. If this puzzle had demanded any highlighting I'd have been complaining about the time I'd wasted on it. As it is, I've quite enjoyed it.