The article says a police officer stopped arresting people and started handing out tickets to a drug rehab helpline once the measure went into effect. He stopped a few months later because it felt like a waste of time, as so few were following through.

It doesn't seem to me that there are any who actually sought help but were held back by lack of available funding.

The sense I get from the article is that very few addicts are in a state of mind to voluntarily seek help.