Yes, Fee is one of the drivers there this week and I think she said she spoke very briefly with her. I saw Meredith with Mardy last summer in LA, she's very pretty and seems like a nice normal girl, they are very close so it's no surprise she accompanies him sometimes.
Here, I remembered i took pics last summer when they were watching one of Mardy's buddies in qualifying. First one is with their mom, she's the pretty one in the green tank top. click for bigger. You can see that they look alike