I'm going to have to agree with this, though also from the Virginia Beach area.
I live in a neighborhood that sees a lot of seasonal visitors and until I went out and got an 802.11n router my internet was faster than my wireless lan. I realize this won't be the case one the summer comes and most of the houses around me are filled and using their connections. However, this is something I know and understand.
When the network is congested I expect that Cox will ensure that time sensitive applications, such as my VoIP and Skype calls abroad, will still work correctly.
QoS isn't bad. It isn't necessarily a slippery slope, and it isn't even necessarily a sign of poor network design. P2P file sharing is not a latency dependent application and I expect it to get treated as such.