The search for such an option ended when I found out that some recycling stations actual do that ! Among all the cool collection work they do, they are also giving free stuff away !
The compost soil is treated so that it relatively free of weed, pest and harmful poison. Just bring your own containers / bags and voila, take it home.
Read about this in a short article here:
Where can you get free compost, click here.
When you can pick the free compost soil, click here.
Go easy with the sun and ice cream when the sun is out :)