Witnessed an abandonment (Parent has been found - child returned)

I apologize in advance for posting this and I ask for your understanding, but need to type this out as I know that it will bother me for a long time.

I am in AZ this week, going between Phoenix and Mesa. This evening I am driving back to the hotel in Mesa and decided to stop at McDonald’s for a meal. I walk in and there is a little girl, about 5 years old, sitting in a booth eating ice cream. She has a pink dress on with a pink blanket and no shoes. I look around the place and beside the workers; I am the only one there. The girl serving me looks at me and says, yeah, somebody abandoned her here, so we gave her an ice cream and we called the police.

So, police walk in at this same time and I am listening as they speak to the little girl. She had come in with her mother and her mom told her to play in the play area and she would order them some food. So, when she finished playing, she came out and her mom was gone. The police officers asked her more questions before leaving with her.

The McDonald’s worker asked if I was ready to order. I just looked at her and walked out. I would have started bawling if I had tried to tell her that I could not eat. Why in the frick do people do this to kids? Makes me sick to think I have two dogs at home that are treated and living better than this little girl.

Again, I apologize for having to dump this in the forum. I have a feeling I will have a long night of no sleep.