I would assume that they were in maintenance because there was nothing left in the wallets for users to withdraw. Basically your coins were already gone by then (I assume). I don't think anything is left. I have some bitcoins and US dollars that still show up in my account balance, but they don't really have that money to allow me to withdraw.
The coins were gone in 2014 according to the Cryptsy. I don not know if I should believe them or not.