I was arrested and the police let me go; what happens next? You will receive a certified letter from a district court in a few weeks. Sign for the letter and make an appointment. You will need a criminal defense attorney.
Do I really need a lawyer? Yes. That's why we have the Constitution.
The police never read me my rights; can't I get the charges dismissed? Maybe, if the statement you made is a significant factor in the case against you. On the other hand, if you did not say anything, you can't - it's the "No harm, no foul." rule.
The officer said if I cooperate I can get the charges dismissed; is this true? Unlikely, but in certain instances cooperation has its place.
I only had two beers; I don't think I was over the limit. The police did and you have to convince the judge you were not. So you better get a criminal defense lawyer.
How much is this going to cost? It depends on the charges against you and the facts of the case. You are not buying a hoagie; you are dealing with your life, reputation and liberty. Get in here. Now.