Evening/Night dog parks?

Are there any dog parks/dog friendly parks open after 6 PM on weekdays in OC? I am in Anaheim/Orange area, and I want to take my dog somewhere fun and safe so she can be off the leash after I get off work around 6. Off the leash isn't a deal breaker, but a safe park with lighting and fences away from traffic would be ideal. Thanks in advance for suggestions