It's hard to imagine, but I wish they would have taken advantage of him walking in with the compromised device in the first place.
I once stumbled upon a really bad vulnerability in a traditional telco provider, and the amount of work it took to get them to pay attention when only having the front door available was staggering. Took dedicated attempts over about a week to get in touch with the right people - their support org was completely ineffective at escalating the issue.
Cox's support organization was presented with a compromised device being handed to them by an infosec professional, and they couldn't handle it effectively at all.