We're back to questions of gender again. Who knew that we would be talking about the hot-button topics of current societal debate in the middle of a light-hearted article about crazy people in Walmart? If this person wants to be referred to as a woman, then they have that right. Everyone is free to be whomever they wish to be, and we're not here to poke fun at them for their lifestyle choices.
Most people, however, don't feel the need to stick a label on their back to inform people of their gender. Because it's on his back, we're a little suspicious of whether he actually put it there himself. It's entirely possible that somewhere in this branch of Walmart is a mischievous child who thinks there's nothing funnier than sticking labels on people's backs when they're not looking. At least it doesn't say 'kick me.'