Haw. Rev. Stat. § 302A-1152: Unauthorized vehicles on school or public library grounds.

Any unauthorized vehicle parked on school or public library grounds may be towed away at the owner's expense, or the owner or driver of the vehicle may be arrested by any police officer without warrant, on complaint of the principal, librarian, or other person in charge of the school or library. Notwithstanding any other law to the contrary, upon conviction for parking an unauthorized vehicle on school or public library grounds, the owner or driver of the vehicle shall be fined not more than $50.