Job Application: Have you ever been convicted of a crime? What to answer?

So in 2007 and 2008 I was cited for underage drinking in Oregon. From what I've researched and asking a few police officers at the station, under Oregon law, underage drinking is a violation and is NOT a crime.

I am entering my final interview for a consulting firm this Monday and filled out an application today that asked "Have you ever been convicted of a crime?". I marked "No". A lot of people I've asked said that I can mark "No" because underage drinking is not a misdemeanor or felony. I think I marked "No" for my current internship and still got the job.

Does anyone know if marking "No" was the correct answer? If I was wrong, what do I do?? Am I just overanalyzing everything (I'm an analyst BTW)?

Here's what the application said:

"Please note that a "Yes" answer to any of the following questions will not necessarily disqualify you from employment. Factors such as the age and time of the offense, seriousness and nature of the violation, and rehabilitation will be considered when making any employment decisions.

Have you ever been convicted of a crime? Do not include convictions that were sealed or expunged pursuant to a court order.
NOTE: Before answering this question regarding criminal convictions please refer to the instructions below if you reside or are applying for a position in California, Connecticut, District of Columbia, Georgia, Hawaii, Massachusetts or Washington.

I hereby authorize [Company Name] to conduct any necessary investigation regarding my background as it relates to the position I am seeking and to the extent permitted by federal, state, and local law. I agree to complete the requisite authorization forms for the background investigation. I hereby release all parties from any liability in connection with the provision and use of such information."

I'm just freaking out a little because I am so close to snagging this job, but I really hope a minor mistake on that form won't make me lose the job.

Underage drinking is a crime - its a misdemeanor, but I'd mark no anyway. It's your only chance. Like they're going to check. It's also your only chance of getting any consideration.

I think they mean major crime. Don't think underage drinking will show up on your background report, but I'm not an attorney. Anyway, I'd check no because A: it's not a serious crime and B: you'll never get the job the second you check "yes" they won't care what your explanation is. answering yes equals not hired.