I'm really ready for this one to be open, however, I'm not surprised that the Wawa is so overcrowded. There are very few gas stations in the area and most of them are not exactly off the Beltway, and some of the ones that are can be quite sketchy, so this Wawa is meeting pent-up demand. There's a BP up the street from here off Annapolis Road/MD-450 that's kind of questionable, but serves its purpose. The Wawa off Ritchie-Marlboro Road/Exit 13 off the Beltway is extremely crowded too, and this one is not as directly off the Beltway, so this location is not exactly a reliever station neither.
I wonder how this will impact the future Beltsville location. That Wawa is usually pretty overcrowded and busy too, but its a lot more convenient to the Beltway than this one.