What does the ice cream truck, in the video Yoü and I?

Among the questions asked, Gaga on MTV, one of them was: What does the ice cream truck, in the new music video Yoü and I?

Lady Gaga answer:

The ice cream truck on Yoü And I, is a representation of the destruction of my youth, in a very early period of my life, so that melody, so scary and creepy.