All animals not redeemed or adopted within ninety six (96) hours shall become the property of the city and may be humanely destroyed or delivered to any nonprofit animal organization or shelter; provided, that the animals shall not be used for experimental purposes and shall be the sole responsibility of the organization; and also provided, that the animal control officer or his agent shall make a reasonable effort to notify any person identified on the collar of an animal prior to the disposition of that animal. (2001 Code § 90.42)