Patriot's Day is weird; my last employer was headquartered in Boston yet we had the day off in Chicago. Sadly they (and my current employer) don't recognize Pulaski day, the local equivalent when city offices and schools shut.
MA has much better roads than Illinois, plus at least one cop at each construction area. I'm jealous of that kind of attention. It beats leaving 20 miles of lane closed off for an entire summer with no visible activity.