I know someone who got a DUI and went to court. It was also his first time getting in trouble with the law. Instead of jail time, they forced him into a rehab center. I do not know if they have that option in every state, but it may be a possibility. Many people support the rehab instead of jail option because sending an addict to jail will not stop them once they get out. They will most likely end up back in jail for the same/similar reason. Rehab can prevent people from making the same mistakes and not to end up in jail.
Good luck!!!