Space is big. For Sol the average distance between astroids just shy of 1m kilometers. Then if you have a gas giant like Saturn, the average distance is in the 1m km distance too for the outer moons. And the hiding works both ways. If they cant see the pirate because of a physical object blocking, they cant see prey.
This kind of ambushing works, but typically at gas giants, to pounce on wilderness refueling.
I'm familar with PoD. And Theeve. Theeve is funded by GeDeCo. Its goal isnt to make money.
Pirate pops out. Makes a interception plot.
Victim ships knows.
Inform the SDB doing patrol.
Flies either away from the pirate if they're the same speed. They fly toward patrol if they're faster or slower.