The Supreme Court of the United States has thrown out a conviction for disorderly conduct on similar facts:
"Officer Johnson testified [...] that he arrested petitioner for 'being loud and boisterous,' and '[h]e was annoying me.' The municipal judge found that petitioner was 'hostile' to the officer. [...] The court proceeded to find Mr. Norwell 'guilty of disorderly conduct with the intent to annoy' and fined him $10 and costs 'for being so noisy.'
Upon this record, we are convinced that petitioner was arrested and convicted merely because he verbally and negatively protested Officer Johnson's treatment of him. Surely, one is not to be punished for nonprovocatively voicing his objection to what he obviously felt was a highly questionable detention by a police officer. [...]
The judgment is reversed."
Norwell v. Cincinnati, 414 U.S. 14, 16 (1973).