No stars. Second time Walmart has serviced my vehicle and left it unlocked when they finished the work. This time they left the driver door window down too at 7:30 pm, outside the back bay, in a dark parking lot. The person that wrote up my order earlier, told me it is their policy to always lock the vehicles they work on. They put on a new wiper blade on my vehicle, that did not need to be replaced too. I told the service manager what had happened. He didn't have a word to say. I will think twice before going there again.