Chockfan
I'm afraid it does not work like that, the Blue Badge will certainly help, but you will only receive an award for PIP Mobility by showing that you meet the PIP criteria for one.
The Blue Badge assessment is much more based on the old DLA criteria and the claimant being virtually unable to walk, whereas PIP is only concerned with the distance you can reliably walk on the majority of days
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems