Drive-in for Bank Customers Only

Are they kidding? Yesterday I was at the Wachovia drive-in and could not help but notice the big sign that said “Drive-in for Bank Customers Only”. With the banks crying the blues you think that some bank marketing genius would suggest a sign that says “Welcome non-bank customers. We are happy to serve you”. I must say the Wachovia teller was extremely pleasant and even asked me if I needed anything else after she finished my transaction. I did not even have to wait online. Why not extend an invitation to new potential customers so that they may experience your fine customer service? I just don’t get it.