Have you live in London long ? Reason I ask is that the bar on off-carriageway parking in London dates back to an Act of the 1970s, and no signs or lines are needed to indicate this restriction. If you'd stayed on the DYLs you would have had a very robust appeal argument of loading, which is an exemption to yellow lines. Looking at your GSV link, there is no loading restriction.
I cannot see a robust appeal argument unless the vehicle was continually attended whilst loading took place. That is the sole exemption to the restriction.
