I'm going to leave my dog in my car on a very cold night.
Aren't you afraid that people will notice?
It's late at night, so I'm thinking I'll be able to do this for a while
Even though people might not notice, it is not good to do that to your pets. They could die being in a cold car overnight.
What does it matter?
It will matter to you when you dog dies of hypothermia because you left your pet in the car while it was cold. Can you live knowing that?