Being asked to leave Assisted Living. Do we still need to give 30 days notice?

My father is in an assisted living and the executive director verbally told us she is asking my father to leave because they can not care for him any longer. She said she would be sending a letter but so far it has not arrived but we took the threat literally and have made other arrangements. Can we assume the executive director negated the contract by the statement and we can leave now without 30 day notice needed ?