 Things are not looking too bad at the Port McHenry Tunnel, so if you need to travel there, now would be the time. But backups persist at the Baltimore Harbor Tunnel stretching into Brooklyn Park, and drivers remain in a gridlock all the way through. This report is sponsored by Mattress Firm. Spectacular savings are happening now at Mattress Firm's July 4th sale. You can get a Sleepy's Queen mattress for just $89.99, the lowest price ever.