Question It is illegal to park your vehicle: Answers In an unmarked crosswalk. Within three feet of a private driveway. In a bicycle lane. Explanation It is illegal to park your car on a marked or unmarked crosswalk. You may park in a bicycle lane if there is not a "No parking" sign posted and your vehicle does not block a bicyclist. Take a FREE Practice Test Now This questions appears in the following tests: California Practice Test