Why are they anti-social?
I should have thought it was pretty obvious, even to you, Duke.

The Co-op car park is provided by the Co-op for people shopping at the Co-op. That's why it's called the Co-op car park. Since the ticket machines stopped working, some people, such as (to name names) the owner of Snobby Dogs Poodle Parlour, leave their cars there all day This sometimes means that people doing their shopping can't park there. So they have to park somewhere else, and that means struggling with their trolleys or bags to wherever they have had to park, and then taking the trolley back.