NEWBIE almost an owner! - air conditioning question

We looked at one of those this winter, it's a nice rig. As for the dogs, many RV parks don't want you to leave animals unattended. If the sun's out, these things get hot in a hurry if the ac fails or the park's power fails. We leave our three regularly but ask neighbors to check if it's hot. Ours bunk in the snow, so we don't think about a furnace! Have fun in your new rig.