Trapping furbearers out of season is a vialoation of law. No distinction is made for helping a neighbor with a few "problem rats." This will only hurt all outdoors men and trappers, especially since you said others probally saw you. There are legal ways to go about this with nuisance permits that will allow for trapping if they are causing problems. Sometimes trying to be the hero your way isn't the best route to take. Be careful what you say and do.