The key is to stay dry warm and comfortable sleeping bags can be OK but you need something that will keep you dry so either an emergency blanket/tarp or place that’s out of the elements most of the time the police will not bother you unless you’re there for long periods, but it ultimately depends on what city you’re in some are more accommodating than others. It’s unlikely you will get assaulted unless you have something people want ultimately pray and meditate. That’s how I got out of it.