One time I took our dog with us to a wooded area for a nice afternoon walk with my little nieces and nephew on a fine autumn day (like today!). The sun was out and although there was a still a chill to the air, the day got warmer as it went along (up to 64 degrees).
On the way home I decided to quickly stop by the local supermarket and grab hamburger meat for a nice cookout to finish the day. Took the kiddos in with me, left pup in the car in the shade, had the windows cracked.
I'm minding my own business, get my item, return towards the car and noticed a couple of women dancing around the vehicle. One of them was screaming - SCREAMING at me how horrible I was for having my dog in the car. I was stunned. I was so surprised and said that I had only gone in for one item for a few minutes and showed it to her. Well, she was beyond agitated and screaming how she had already called the police. I said that was fine by me.
The policeman came and listened to what the woman had to say, turned to me and I explained what was going on. Of course the dog was just fine and sitting there with a big grin on his face waiting for us to enter. I opened the door and showed the policeman the coolness of the car, and how the airflow was good.
He just smiled, shook his head (because the crazy woman had left by now) and said that I was fine - no problem. He apologized about the inconvenience and we both left.
I don't leave my dogs in cars anymore. That lady was way over the top, but there are a lot of well-intentioned folks out there who probably wouldn't hesitate to harass anyone with a dog in their car.