Well, it might be wise to get your funds out while you can. In the meantime, I'll be looking for another payment method to fund my BTC exchange account.
EDIT: I was going through the Dwolla ToS and found the offending line --
- User Conduct You understand and agree that you will not engage in the following activities: ● Act as a marketplace and/or exchange for virtual currency products without prior written consent;
(Italics for emphasis)