‘You’ve been marked’: Woman finds strange object on her Toyota. Then she says you’re in danger if you see one

A woman issues a PSA after leaving her car in a parking lot and coming back to find a strange object on the back of her car. She adds that you could be in real danger if it happens to you. 

In a short video, Jackie A.X. (@artemis_meafter) shares the details of what she says is a common trick used by traffickers. She says she parked her car and went into a store for 10 minutes. When she returned to the parking lot, she noticed something strange.

What did she find on her Toyota?