Well that seriously blows hardcoe since I refuse to advance the mq until I fight dragons with my next character... I want to avoid the dragons altogether with her until I get around to deciding to go ahead and finish out her story... And she's already joined the Stormcloaks... Well I guess I shall see soon...
A work around is to advance the MQ to the first quest with Delphine. I think it's "a blade in the dark" or something, the one where you go with her to watch the dragon get resurrected then fight it. Anyways, while this quest is active no random dragons will spawn. So you could get to this point, do the civil war and anything else and not deal with random dragons until you finish it. It's not exactly what you want but the closest I can come up with.