Possibly, but she most definitely changed from present to past tense when she started talking about the dogs. If she had not have changed tense I wouldn't have thought anything of it.I think she mentioned the dogs because perhaps she may have already planned to say the dogs were in the backyard while Gannon slipped out and ran away.. the running away was her first story so she more than likely worked out the bit where it would have been impossible for the dogs to trip the motion sensor because they were in the backyard, therefore only Gannon could have tripped that motion sensor when he snuck out of the house.
It also took me about 12 watches of the video to catch it