“Animal at large” means any animal that is:off the premises of its owner or custodian; and not under restraint in the manner required by § 10- 307 {“Restraints required”} of this title. No owner or custodian of an animal may allow it to be an animal at large. When an animal is off the premises of the owner or custodian, the animal must be:restrained as required by § 10-307 {“Restraints required”}; and under the control of a person who is capable of controlling and physically restraining the animal. An animal that is participating in an off-leash activity approved by the Commissioner or is in an area and during the hours approved by the Director of Recreation and Parks for off-leash recreation is not at large unless the animal leaves the activity or area or remains beyond the approved hours. Ord. 11-573