An MIP charge in considered a misdeameanor in Missouri and the charge has been expanded since 2005 to include previous lesser offenses.  It is always possible to have an attorney try and negotiate the charge down to a lesser offense (often a violation) and the facts of your case will help determine if that is realsitic.  It does not sound as if you were drunk and disorderly or rude to the police, etc.  Get a lawyer and good luck.