You should catch a bunch like mentioned above, then bring them into the DMV and let them go, preferbly Norwich. The more the better.
The live trap and release 3+ miles away had been lowest on my list (mainly because I can't imagine they wouldn't find their way back, and effort) but DMV eh? (I kid, I kid. Since I found out about the AAA secret license renewal places I thankfully haven't been to a DMV in ages!)