My chickens are about 3 months old. They are kept in an 8x12 run with a 4x8 coop. They have not learned to go back in the coop at night so. I have to go out chase them down and get them locked away. We are going out of town today and returning tomorrow afternoon. I have no one that can come lock them in tonight or release them in the morning. It gonna get in the mid 30's tonight. My question is should I lock them in the coop for today and leave them for the entire day and night, or should I let them have access to both until we return.