These laws aren't as crazy as the seem at first glance. The idea behind them is that in order to end homelessness you need to provide comprehensive services, not just meals. By offering a single service you are decreasing the likelihood of visiting a location with those extra services. I've heard talks that indicate that directing people towards service centers is a more effective way of helping those in need. Unfortunately a lot of these laws are poorly written and lack the requirements to fund services that would help make a real difference.