I have a tip that any cell phone can use...
Have you ever been locked out of your car with your keys inside? Well if you have I have a simple trick to get them back for you. You will need someone with spare keys at home and a cell phone.
Call whoever is at your house and put you cell phone up to the driver door handle ask the person with your spare keys to push the unlock button several times in front of the phones microphone
TA-DA! It's unlocked and you can get your keys now and go home... It might help if you put your phone on speaker phone, that's what I did but I'm not sure if it matters. I did try this and it did work for me.
If you think it is a joke I did to, but believe me it works!!!