Thank you, but as you might not see in the image, there is nothing to identify the driver, assistant of vehicle. This was done on purpose for my safety. Perhaps I could have got on the phone to the police but I also had things to do and I was not going to follow them and put myself and vehicle at risk. The image was recorded at the last moment before I got in the car.
Is the store responsible? No. Goods had been paid for and taken out to the car park. How they are taken from there is up to the owner of the goods. The store just offers safe methods of transport. No doubt if they had asked for advice it would have been given. I have also been given a flag by Bunning's. It lives in the car just in case I need it.
What makes a good store is the staff. Some are on top of the game, others are still learning.
It is very risky giving electrical advice as any work on fixed wiring needs to be done by a qualified person. If you need to ask you probably should not be doing it. Stores cannot give instructions on how to do as it holds them accountable.
I see Grumpy John's Vicroads poster at Robot trading. I think they might have a policy of making sure loads are properly secured.