Normally, when you hear someone talking about a "getaway," your ears perk up. You're probably imagining a car chase or some masked bandits on a train, riding away with the cops in hot pursuit. Unless you're imagining a baseball version of "getaway day."
In that case, all it means is an early game to help make travel to the next venue a little easier. Although, for NESN Nation's Dan Duquette, if the next venue is back home at Fenway Park, it's still pretty exciting.