Consider inviting some friends and relatives over to join in the search as well. Remember milk snakes are primarily nocturnal and are more active at night and in the darkness. All invitees should be aware of the task and need to remain quiet and still as much as possible. Baby snakes of all kinds make it harder to find their small bodies. Tell everyone to bring a flashlight. Bill it as a search and rescue party! Concentrate in closets and in shoes. Also in all dark spaces like corners and under things. Move quietly and methodically but take time to just sit and watch. You will be surprised how quietness and observation with extra pairs of eyes will reveal certain things.
You speak as one who has some practice at this...? Actually, sooner or later, it happens to most every snake-keeper. You'd think that pet stores would not sell tank lids with holes in each corner, wouldn't you?
Rudeness is the weak man's imitation of strength. Eric Hoffer(1902 - 1983)
“The greatness of a nation and its moral progress can be judged by the way its animals are treated.” ~ Gandhi