If the underlying stored heat leaks to the surface then it may indeed melt the snow and you'll have "snow-free" parking, but that won't be the end of the story,

If the underlying stored heat leaks to the surface then it may indeed melt the snow and you'll have "snow-free" parking, but that won't be the end of the story, as all that resulted water will most likely turn your parking lot into an ice rink.