As a general rule, misdemeanors are considered to be less serious offenses than felonies. However, the exact definition of a misdemeanor can vary from jurisdiction to jurisdiction. In most jurisdictions, misdemeanors are punishable by up to one year in jail, while felonies are punishable by more than one year. Some jurisdictions also classify misdemeanors as either "gross misdemeanors" or "petty misdemeanors," with gross misdemeanors being more serious than petty misdemeanors.
In your specific case, it would be necessary to consult the local laws and ordinances to determine whether loitering in a public park after hours is classified as a misdemeanor. If it is classified as a misdemeanor, the penalties could include a fine of up to $200 and/or up to 30 days in jail. However, it is important to note that the specific penalties imposed for a particular offense may vary depending on the circumstances of the case and the discretion of the court.