Before you call the locksmith, you might want to consider checking to see if the rear seat backs have a release. If not, it’s a pretty simple task to remove the rear seat to gain access to the trunk. Remove the bolts from the floor holding the seat, remove the seat and then remove the rear seat back. Good luck. There may also be a release cable under the carpet in your car. Good luck

Looking for a professional locksmith service in a big city like Oakland can be stressful. So I recommend Mul-T Locksmith, they are a local company who will open trunk for you at a very reasonable price and can be at your location in 30 minutes or less. You can visit their website at http://www.mul-t-locksmiths.com/Oakland or give them a call on (510) 544-8345.