This seems very naive on VZW's part its extremely easy to show that there is congestion at the ingress of one of your peers. Even if VZW is not a direct peer it

This seems very naive on VZW's part its extremely easy to show that there is congestion at the ingress of one of your peers. Even if VZW is not a direct peer its pretty easy for them to get metrics off their clients deployed at the last hop.