former pm john howard 's car was left with a flat tyre recently in sydney .
felicity waterford was waiting at the sydney conservatorium of music when she spotted the black car in front .
she hopped out to offer assistance when she realised it was mr howard .
before they raced off ms waterford convinced him to pose for a selfie .
it comes weeks after education minister christopher pyne was challenged to change car tyre on live television after claiming to be a ` fixer '