During Harvey, a Walmart in the Houston area was totally sold out of coolers. Well, not quite. They still had a bunch with the Dallas Cowboys logo on them. Imagine the thought process: "I really need a cooler, but... no, I can't have this." So yeah, quite a few Houstonians thought they could live without a cooler altogether if it meant they had to show off the logo of that other Texas team.
And let's admit it: Alabama and Auburn fans would do exactly the same thing.