The kid at pepboys gave me 2 APP plugs, and a 4-pack of APs. Well, I realized that their computer now showed they were down in stock on APP and high on AP, and I paid the right amount, so to simplify the process, I went in, asked for a 4-pack of double-plats, handed the guy the old ones and told him to reshelf them, then walked out. I figure it's a lot easier than trying to explain to those idiots what they did wrong.