Unless they started recently, you'll have to rent elsewhere. But (depending on the kind of bike), you could buy a bike at the hub, for the price of a 5 day rental elsewhere. And then donate it back to the Hub when you're done...
Jack's, Bellingham cycle works, and Fairhaven have some ok Rentals per day. If you have a grand in your bank account you can try the demo Fleets at either Fanatic bike shop or Kona on State st. On the 25th there is a free demo with shuttles for the Trek bike shop.
Thanks! Your answer is awaiting moderation.