"Yes, it is injected, and it only penetrates just below your skin."
Once he has gotten one of the little chips in everybody's neck, he calls a medical droid over who does it to Rupert.
"And if you'll remember, you're doing this so you can get off the planet. I assumed you didn't have enough money. If you don't need my help, then by all means, leave."
At this point he shows you out to where your ships have been parked. You can leave whenever you're ready.