FYI update: I checked with coworkers and they said that this happens now and then, but, yes, is very short in duration. Since then a Cox tech came out on his own and rechecked our wiring because our TV is from another company and they wanted to be sure there wasn't a conflict with the lines. Since then no interruptions in service and speed remains slightly higher than what we thought we were going to get even with both of us online at the same time.
Very, VERY pleased with the high-speed so far.
(Just did an update that took 20 seconds to download and install. This same size MB would have taken me nearly 3 hours with dial up. I couldn't be more gobsmacked if Superman came crashing through my window and offered to take me to his Fortress of Solitude for a glass of sarsaparilla.
