I agree with Mr. Rothstein. Pay the fare. Jumping the turnstile is called "Theft of Services" and it is a class "A" misdemeanor which carries a maximum of one year in jail.
You may be charged with Theft of Services, a class "A" misdemeanor (this is a criminal conviction) which carries a penalty of up to one year in jail. You should strongly consider hiring a Brooklyn Criminal Defense Attorney because if it is mishandled you could end up having a criminal conviction on your record for the rest of your life. If it is a first arrest a competent attorney should be able to help you resolve this case without any serious penalty.
I practice extensively in Kings County Criminal Court, Brooklyn, and feel free to visit my website at http://www.mjrlaw-ny.com/
THESE COMMENTS ARE NOT LEGAL ADVICE. They are provided for informational purposes only. Actual legal advice can only be provided after consultation by an attorney licensed in your jurisdiction. Answering this question does not create an attorney-client relationship or otherwise require further consultation.