I second what Ric & Jacin wrote. If you have a choice of dates to choose from to see an act, check the T.D. schedule. I drove around the block at 8 pm and parked right behind the venue.
It's closer to Haymarket and they have a parking contract with the Government Center garage.
It is close to North Station and parking will be a challenge when there is a game, but otherwise there is street parking if lucky and plenty of parking garage options.
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