She would be inconvenienced, but that doesn't mean she was slandered.
If someone steals Alice's car and commits a hit-and-run, she will be inconvenienced when the cops show up at her door, but the person who reports her plates won't be committing slander.
If they said they had received word that the car was registered to Alice, that wouldn't be libelous. If they said she was the driver, that would be libelous. If she was charged with murder and they said she was an alleged murderer, that wouldn't be libelous.
If someone steals Alice's car and commits a hit-and-run, she will be inconvenienced when the cops show up at her door, but the person who reports her plates won't be committing slander.