If you end up in a jam you can always shoot up to Massachusetts where it's recreationally legal. It's about an hour and 15min drive from New Haven to the closest place. It's pricey but you've got plenty of selection.

Theory Wellness 672 Fuller Rd, Chicopee, MA 01020

Edit: it's also recreationally legal here in CT, they just haven't opened any dispensaries besides medicinal ones yet