Security
You'd have thought even a bus timetable site would have had a sensible level of security to keep out intruders wouldn't you. Maybe not for the need to keep out terrorist sympathisers, but at least to protect themselves from practical jokers ( which actually this kind of is) and disgruntled employees/members of the public.
But then, it does seem as if they're in good(?) company - considering the far more serious incidents recently.