Personally, I think you should give it a week to settle in. These things are only a problem if they're abused. A random Tempest floating around Manhattan isn't an issue, and if anything is a catalyst for activity.
If it becomes a problem, then lock the Tempest to Rheinland, Bretonia, and the Omegas and call it there. Hurricanes and Typhoons outside of those regions have been hit-or-miss, and again, if anything, generate activity.
I actually can't remember the last time I saw a Coalition ship in Liberty, and if I had to hazard a guess, I'd say probably February.
Don't scream if the pipes aren't broken.
EDIT: Didn't actually realize the GMs added a restriction to the ID. I still stand by my post, however.