Here's what we do:
We usually take the loop around the west side of Baltimore when towing: in a car, the tunnel is fine - just a small toll.
Get off I95 north of Baltimore (like jog over to US 1 at Bel Air, MD), the objective being to get to US 209 up to I84. We then cross the river at Newburgh and chart a course for wherever we're going in New England. If you don't have an EasyPass, make sure you have cash on you for tolls at places such as the I95 bridge across the Susquehanna River leaving Maryland.
Rob
U.S. Army retired
2020 Solitude 310GK-R
MORryde IS, disc brakes, solar, DP windows
(Previously in a Reflection 337RLS)
2012 F350 CC DRW Lariat 6.7
Full-time since 8/2015