(CNN) After a woman received 15 parking tickets in three years, she finally had enough.

Each time, Alison Taylor's car tires were chalked by a Saginaw, Michigan, parking enforcement officer to keep track of how long she'd been parked.

In 2017 Taylor sued the city and the individual parking enforcement officer, arguing they had violated her Fourth Amendment right to be free from unreasonable searches.

A district court dismissed her case, but a federal appeals court found Monday that chalking for parking enforcement is indeed unconstitutional.

The judges ruled that chalking constitutes a search and that the city did not establish probable cause to conduct one.

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