A pavement is a pavement. If they are sleeping rough, they are clearly not getting the help they need. I'm sure a few degrees in temperature makes zero difference.
There are plenty of examples of our fair city being not so tolerant. Not all of them make the paper.
I used to work in a park in Brighton and looked after a few homeless, providing them with a base to warm up food and have a hot drink. It wasn't part of the job description... Somebody might have turned a blind eye and let them sleep in an unused bowling pavilion...
The two I befriended with...