i am afraid i am not one who talks to councils , i would just lose my temper with them as you have probably seen with my exchanges with @GJH who i have nothing against at all apart from his council speak, but if someone who can talk to them wantys to have a go i would be willing to support them in any way that would help.So, in summary, what we should all do is when we identify a suitable unused car-park is to petition our local council. That is YOU, not SOMEBODY!
I'm sure Graham can provide a suitable letter wording after all the work he's done in the past.
And no, I'm not being sarcastic - if you want it you have to be prepared to go out and get it.