Should I confront a rude customer for smoking with kids in the car?

I work at mcdonald's. There is this women who comes through the drive through sometimes. she's kind of rude. Never says thank you. I take an order out to the parking lot last night, and its this lady. She rolled down the window and a bunch of smoke comes out, and she had a cigarette in her hand. There was a child in the back in a car seat. I think there were other children in the car too. I almost said something but I didn't know how shed react, and even though id just be looking out for the children, I don't know if shed go to my boss with some made up story and get me fired.

Should I confront a rude customer for smoking with kids in the car?
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