Yes, that is what I did. But, DONT tell them you are coming to retrieve your child. They will try to talk you out of it, then there is a possibility they will "temporarily" move him to a new location and "forget" you were coming to pick him up.
I went and pulled my son out one week after I enrolled him, and I didn't tell them I was coming. I just showed up there at noon on a Saturday. Of course, no one was expecting me and the building was locked up. They only knew I was there because they saw me on the surveillance cameras. Also, once they discovered I was there, they refused me access to the building and made me wait outside while they gathered my son and his belongings.