"If you don't want a filth creature to land among you, I recommend chatting."
Cam can't actually read flashing light code, but he will do his best to avoid traffic.
"Well, I would have been happy to file a flight path, Officer, but the people I was talking to decided to ignore me," says Cam, "so I didn't know how, and I didn't know to expect to have lights flashed at me so I didn't have computer translation set up for it. Please feel entirely free to impound the vehicle."
"Um," the guard repeats.
"If someone else wants to make war on the filth creature, they can wait in line. I am an atmospheric traffic control officer and my concern is ensuring that they do not continue disrupting my airspace with their unauthorized flight paths!"
"So if I leave the planet I have to do it with my own two wings," Cam re-clarifies.
Officer Eitamek makes alien facial expressions. "Only as an absolute minimum. When the system is functioning well, there are no midair collisions and no one fears that there might be. All vehicles in my airspace proceed to their destinations in comfort and security. Tell me, do you believe that comfort and security will be the feelings experienced by a local pilot who sees a winged filth creature flapping past their viewport?"
"No, probably not. ...So I'm not allowed to leave the planet? Until, what, you personally have taught me local airspace regulations?"
"That's very kind of you!" says Cam. "I appreciate that. I can produce handbooks and manuals too but it's easier if I have title and author."
"Thank you," says Cam, producing a copy and tucking it into his computer. "I'll read that before I attempt to fly away."
"Hi!" says Cam to the guards. "I hear you're supposed to ignore me. That means that if you react to me trying to enter this building you'll be disobeying the consensus. I'm not sure what sort of consequences that has but I bet they're not designed for your comfort!"