Hello Harribobs, it's very good of you to comment - and a noble effort justifying the bus routine (although I'm not sure I can reconcile bus stops lined up in threes along the route).
I think you're putting far too much emphasis on my negative reaction - for the most part the reaction here has been very positive (rad had doubts about the veracity of the idea but, even then, thought it was a brilliant puzzle!).
As I tried to explain, my annoyance came from spending a long time trying to get around a problem I had with the realism of the concept - it's a particular failure of mine to put a great deal of emphasis on the scenario rather than the puzzle itself.