I have not had this species but i can offfer my advice.
You most definatly should not have tipped then out because you may have harmed the queen. but as you said you knew that.
when you first get you ants they will be a small colony and will not feel safe in the new 'territory' so not to risk it they will send one or two workers instead of the whole colony. If you colony is small 5-35 workers then you will get few workers outside the nest but when you get the bigger number the more they will come out.
Dont worry about hibernation because you have missed it and worry about that later in the year.
Hope that helps
,matt