i would leave them alone. maybe take some in and when they hatch keep them as pets. racers are neat snakes to have. they aren't afraid of you sitting there and will come out.
if nothing else they will keep the rodent population down. wish i had a few around where i live.
Not only that but they're not all going to stay in the same area. They will go to where the food is. Racers are very tame, pretty dang fast as well.