There are a variety of parking options in the area around Oak Park. Parking spaces directly adjacent to the park are limited so you may want to consider some form of public transportation, or plan on incorporating a nice walk or bike ride into your Festival excursion.
There is a small free lot on Junipero adjacent to Oak Park, and free street parking around the park along Junipero and Alamar, and on the neighboring streets. There are drop-off zones in the Junipero parking lot for those visitors that are not able to walk, you can pull up close drop off your party and then meet them after you park your car.
Parking Shuttle! - The Sansum clinic parking lot at 317 W. Pueblo is available for French Festival parking. Gold Coast Limousine will be operating a free shuttle from the parking lot to the Festival throughout the day on Saturday and Sunday!
There is a paid public lot a few blocks from the Festival, at Cottage Hospital, that may have space during the day.