An owner of any animal commits an offense if the animal is at large. For purposes of this article, an offense occurs without regard to any culpable mental state of the owner and there shall be an irrebuttable presumption that any animal which is at large shall have become so by the permission of its owner or harborer.
Any unspayed female dog or cat in the state of estrus (heat) shall be humanely confined during such period of time in a house, building, or secure enclosure, and such enclosure shall be so constructed that no other dog or cat from outside such enclosure may gain access to the confined animal, other than as intended for planned breeding. Owners not complying, or who are found to be confining the animal inhumanely, may be ordered by the animal control authority to remove the animal in heat to a boarding kennel, veterinary hospital, or animal shelter for the duration of estrus. All expenses incurred as a result of such confinement shall be the responsibility of the owner. Failure to comply with the removal order of the animal control authority shall be a violation of this chapter and the dog or cat may be impounded.
The animal control authority is authorized to impound any animal at large. The animal control authority is specifically authorized to enter onto private property, other than a private dwelling, for the purpose of impoundment of an animal observed to be or to have been running at large.