The following acts or activities, when performed or undertaken in conjunction with or as a part of, any parade, picket line or group demonstration, are hereby prohibited and declared unlawful:

1. The carrying on or about the person any firearm, or any weapon or article, including but not limited to blackjacks, nightsticks, or flashlights, which by their use might constitute a deadly weapon.
2. The taking or keeping of any dog or other vicious animal, whether leashed or unleashed.

(Code 1981, § 6-2035)