Keep the bait out there for them. If they had a chance to breed, there could be 20 or more around. Since we are on the subject of “rodent infestation”, I will share a couple of memories of my own, regarding that little pest.
Several years ago, I had a rodent problem in a new house. The rodents evidently occupied the house before we did, and they thought they were the owners. They were breeding in the attic and between the walls of the garage & house. I found one small hole about ¼ in wide, where a pipe went through the wall and they would come and go during the night. I surprised them one night by turning the lights on in the garage at 2 a.m. and I saw four running across the floor seeking a hiding spot. Needless to say, the next day, I bought a case of sticky traps with a block of aged cheddar cheese and started to work. On an average night, I had two kills, with one record night, where there were three trapped on the same sticky pad! This went on for over a month and I must have claimed at least thirty trophies. I feel certain that the whole family was wiped out!
I have a friend who had a car with rats under the dash. One day he was headed home from work in rush hour traffic and a car stopped quickly in front of him. He hit his brakes hard to avoid hitting the other car and after he regained his composure, he felt something on his foot. He looked down and saw a rat sitting there looking at him. In utter fright, he hit his brakes again, (nearly causing an accident) and the rat ran up his pants leg, climbing up his leg, until it was between his knee and groin. He jumped out of the car (in rush hour traffic) and proceeded to pull down his pants to get the rat out of his pants! Needless to say, the whole incident was not only scary to my friend, but hilarious to the many spectators!