Garnet looks at the roof. "Maia," she suggests. "The bartender seemed to like you. Why don't you go in and ask him if we can rent his roof for the night? Explain that we are not looking for trouble, but our friend is in some danger from this misunderstanding and we would like to be prepared. Promise him we will pay for any damage to the roof. Offer him this for the night," she adds, handing over a bag of coins.
Her Dwarven nature kicks in for a moment as she is handing over the gold, and her fingers are slow to release the bag into Maia's hand.
OOC: Unless anyone objects, I'm in favor of putting 50 gp of party treasure into roof rental. Between the gold and Maia's astronomical wiles, we might sell him. My logic is that the strategic advantage of the roof is probably worth as much or more to us than a potion, so this is a reasonable expense.