If it was a tracking device, Rand, they would have gotten here in hours, not weeks. And as Takuan can attest, the Osokans hold the spaceport in an iron grip. It is to the North though, Rianna.
Takuan, you take one step and your Intuition kicks in. They're all locked- total lockdown.
Tanic and Rah, you are making your way down the service channel, your Force senses making up for the poor light. However, you soon sense the problems- this service channel is never going to lead to an exit; it will be purely internal. You'll have to make a break back into the corridors at some point.
It's a large room, like an airport lounge, with a commanding view of much of the rest of the spaceport; the western door leads to the stairs you took up, the other three doors lead to raised concourses aorund the upper level of the starport. They came up the same way as you and now have you nearly. hemmed in at the east.