I think you're maybe getting a little confused with the association between Mourinho and the PTB phrase.
Mourinho first used the term 'park the bus' in the Prem (19 Sep 2004 after a 0-0 draw with Spuds) to describe how many teams played against Chelsea. He didn't win three Prem titles by doing the same.
The PTB phrase was previously used more widely in Portugal, so I don't think Jose lays a claim to inventing it overall, but certainly brought it to England.
Also,and sorry to have to break this here, but it isn't Chelsea's objective to play for a point and therefore secure City the title. We never play for a draw. Ever.