Dave, you know I support you so please don't shoot me......
I think the video is not the one we want to be showing. In that one there are still free bays and there don't appear to be many boats. It sorta supports the councils decision.
What would be better is a video of someone preparing their boat at home (maybe in fast time lapse so it shows the prep work but isn't long and boring) then driving to Wello then unable to find a park. Maybe a boat launch then the driving around looking for a bay while the boat sits forlorn.
Unfortunately many times it's actually ok for cars to park in trailer bays because there is crap weather and not many boats. But there is no way that an unsupervised car park system can work, so we need to insist on either a managed solution via person on duty, or complete enforcement of existing regs.
Just my two cents.