There is no universal answer. Whether post-hours park presence is a misdemeanor, infraction, or nothing at all depends entirely on the specific municipal or park district code where the park sits.
| Classification | Typical Max Penalty | Common For |
|---|---|---|
| Misdemeanor | Up to 1 year jail, $1,000+ fine | Repeat offenses, refusal to leave, combined with other charges |
| Petty Misdemeanor / Summary Offense | No jail, fine up to $300-500 | First-time, simple presence after hours |
| Municipal Infraction / Ordinance Violation | Fine only (often $50-250), no criminal record | Most common for park curfew violations |
| Trespass | Misdemeanor (if warned/order to leave) | Refusal to leave after notice |
This strongly suggests a municipal infraction / ordinance violation—not a misdemeanor in most jurisdictions. Misdemeanors typically carry potential jail (even if not imposed) and higher fine ceilings.
Bottom line: Check the local ordinance. A $150 ticket with no jail risk is almost certainly an infraction, not a misdemeanor. But only the statute knows for sure.