Sorry, but IMO it doesn't.
It's a sign on its own. Loading other than in a no loading zone needs blips. The extent of the part-time waiting restriction is shown by the SYL, but where are the kerb blips??
OP, if the location on Carmunnock is within a zone, then post those zone signs- we know it is not within a zone because if it was then these signs would be back-to-back with the side-roads sign. And they're not, what's there is 'Zone ends'!
If it isn't then the contravention did not occur.
IMO this has nothing to do with event days, it's far more basic: no blip or zone entrance signs marked no loading = no contravention.
Edit- this is particularly concerning for BB holders because they're exempt from 'no waiting' for up to 3 hours and therefore wouldn't even need to look for the sign, they'd just park, display their BB, wander off and possibly return to an unjustified PCN.