Four London boroughs have special schemes for blue badge holders:
Westminster
Kensington and Chelsea
Camden (part of)
City of London
In Westminster you cannot park on any single yellow (in operational time) or double yellow with a blue badge and even with their white badge resident/charity scheme.
Also, all boroughs may have varying conditions about parking in permit bays.
What was she doing? Westminster does sometimes use discretion for a first time BB mishap.
