Underage Drinking

My question pertains to Wisconsin law. In July I was charged with a village ordinance violation for Underage Consumption of Alcohol which was my first offense. On Friday my local campus security charged me with a state statute violation of Underage Consumption of Alcohol. When asked if I had any prior offenses I dumbly stated that I had got one in July, and when the officer checked my record and nothing came up. Nonetheless I was charged with a 2nd offense of the State Statute and fined $337 for choosing to consume a beverage I am not, by law, allowed to consume. My question is, have I been mis-charged as a 2nd offense or do ordinance violations carry over to State law?

Thanks

Jonny Lungs
Adovate for the Reform of Underage Drinking Laws
And Strengthening of Drunken Driving Laws