Found! Lost Thomas the Train Toddler Bike

We live at the corner of Fullerton Street and Merion Street. Our four-year-old son left his "Thomas the Tank Engine" bike parked in a space next to our car in front of our house this afternoon.

When my wife went to get the bike this evening, around 8:30 PM -- it was not where my son left it.

After 30 minutes of searching around our property, I drove around the neighborhood and located my son's bike on the sidewalk down the street from our house. While we are grateful our son's bike is found, we feel disappointed that someone would move a bike (with training wheels), belonging to a young child.

Perhaps it was a harmless gesture, but am curious, has anyone had a similar experience like ours before?

Thanks.