Most service issues are related to the signal coming through the coax for service. Try posting the signal levels from 192.168.0.1 > user;admin password;password > Connection > Cox Network. Scroll down and capture a few screenshots showing the downstream and upstream levels.
As for different levels of support, yes. IMO it goes Chat < Tier 1(phone) < Social Media Team(moderators here and contact methods in sticky) < Customer Advocacy Group(CAG)(phone) AKA Tier 2. Avoid chat at all costs.
As for basic troubleshooting, when was the last time a technician was at the house? When did the problem start and anything change around then? Last, how does the coax get from the street/pole to the room the Panoramic gateway is in?
As for outages. Haven't heard of anything in OKC recently. I heard of issues 2+ weeks ago, but that was a outage that was national. Did you check Cox's outage map?