We're not clairvoyant...does the charge have a statute number on it? Was this a traffic incident? Then it's likely 316.072(3)
OBEDIENCE TO POLICE AND FIRE DEPARTMENT OFFICIALS.--It is unlawful and a misdemeanor of the second degree, punishable as provided in s. 775.082 or s. 775.083, for any person willfully to fail or refuse to comply with any lawful order or direction of any law enforcement officer, traffic crash investigation officer as described in s. 316.640, traffic infraction enforcement officer as described in s. 316.640, or member of the fire department at the scene of a fire, rescue operation, or other emergency. Notwithstanding the provisions of this subsection, certified emergency medical technicians or paramedics may respond to the scene of emergencies and may provide emergency medical treatment on the scene and provide transport of patients in the performance of their duties for an emergency medical services provider licensed under chapter 401 and in accordance with any local emergency medical response protocols.
A second degree misdemeanor is punsihable by up to 60 days (775.082) or $500 (775.083)
If it was some other form of resisting/opposing an officer (though that has a different title) it's a first degree misdemeanor (a year and $1000).
In any event, I recommend a lawyer.