I think you're taking whataboutery to an absurd extent. If you're fit and able, M&S or Chester St isn't a huge slog from Boots. If it's so urgent you won't balk at paying for parking, leaving the disabled spaces for those who genuinely need them.
And don't get me started on taxi drivers using the Victoria St bays as an overflow rank - I know from experience that "I'll move if somebody needs the space" is a load of bollocks