I'm Kim from Texas and recently purchased a certified 2013 Lincoln MKZ, other than issues with Grapevine Ford where I purchased it, I am happy with my car... that is until this morning when I locked both keys inside. I was unaware the car would actually lock if both keys were in the car. Fire Dept was able to open the car (they came out since my 2 yr old was strapped in his car seat). Can anyone tell me if this is normal for it to lock up like this? Just curious.