I've tried that tactic so many times. I took a Rogue GB, and sat it right in front of the mooring post in Tau-31. Tanktarget sat in a bomber, and demanded money for passage. If they didn't pay, 5 second boom.
However, a trader can sneak past and hit the mooring post if they're brave, skilled enough.
It is incredibly fun to impose a blockade upon Tau-31. You and I must try this sometime, so I may show you the delights.
I am a long-absent Supreme Commander, Executive Commander, Grand Admiral, Fleet Admiral, and Captain in the mighty Hellfire Legion. I have returned, and am on an urgent mission from Drake Thastus to return the Legion to its former glory, and to claim the galaxy for its own. Only then will I be able to rest.
RP Story (Still deciding whether or not to finish)