Can any please identify the part that's hanging down? I had an object in a tire today and went to a tire place. The guy put a jack under the left side (rear driver side tire was the one going flat) and when he was trying to raise the car it looked like the jack slipped or something. He went about the repair (and I tipped him well) and didn't say anything about this part that's now broken and hanging down. I didn't even know it was like this until I was pulling in my driveway and my neighbor across the street told me I had something hanging from the bottom of my car. I'd already received a text message from the repair shop because I'd forgotten my spare car key there and I can pick it up Monday. I texted them a picture of the broken part and they said they'd be happy to fix it. My question is.... what is this part?? It appears to be plastic. Thank you in advance for your help!