Note: swear filter may strip important parts of sentences. Swear responsibly and face away from the star so your rear faces it. (edit) Moon the star?My advice: park with your facing star
It's really not that big a deal. Bind a key to exit FSS and as soon as you hear the interdiction exit FSS and throttle up. You'll be a half-second behind in the interdiction game, but should be able to catch up if it's an NPC. If it's a Cmdr, well, you're goingbto submit and hi wake anyways so it makes no difference.
So you can confirm that you can hear an interdiction whilst FSS'ing?