She was out of Norman, OK. While that is close to OKC, with traffic from Will Rogers and Tinker AFB on either side, it's still not very busy. It does have a control tower run intermittently by the ANG for practice, and it's a lot busier than Shawnee OK, where I learned to fly, but it cannot hold a candle to Torrance CA where I got my license.
A friend of mine described a "non standard departure" he was in once back around 1970. They were at Eglin AFB and one of the pilots said, "Let's go fly this thing. It's a blast!" They got in a Fairchild AU-23 designed for special ops in SEA and took off. They landed at a small civilian aiport and got out to have a Coke and stretch their legs. Some officious type came up, demanded to know who they were and what kind of airplane that was and why it had no markings of any kind. He told them to wait right there while he went and told his momma on them, or something.
The pilot said, "Get in the airplane. We're not waiting for anyone." They took off from the ramp.
The tower at Hobby could have pointed that Cirrus into the prevailing wind and landed her on the ramp with no problem.
Well, I got the Ercoupe annual signed off this morning. Now I gotta go put it back together.