Hospital bag in the car or just at home?

I have my hospital bag packed and ready to go but should I put it in the car to be ready? I’m 36 weeks and have an appt tomorrow. Idk why, I’ve just been totally overthinking this time around and want to make sure I’m ready if I go into labor. I live in southern ca though and it’s been warm so idk if I should leave my stuff in the car or not. What are you guys doing with yours? Just leave it at the house or in the car? Hospital is 30ish mins away from our house so that’s why I kinda want to have it on me but it’s been warm so I don’t want our toiletries melting lol help ease my mind please