Your picture:
2 and 3 (middle and bottom) Spreading NOT Allowed anywhere on any server.
1 (top)
The actual rule states
Do not station spread with airports, docks, train or road vehicle stations to extend coverage area to additional resources including towns and cities unfairly.
I do not believe 1 is unfair, this station is not gaining anymore coverage than a 4 lane station placed there, however it is more visually pleasing, something that on the whole the game is not. Given that All tiles are in use by the same player I have no problem with it, if there was a 2 tile blank gap between the stations then I would take issue because that would be spreading