Clamp's: A Timeless Connecticut Hamburger Stand

The seasonal hamburger has become virtually obsolete, at least in my neck of the woods—the Tri-State Area (New York, New Jersey, Connecticut). That's why I was so excited a couple of weeks ago to make my first visit to Clamp's, a seasonal burger stand near my friends Sam and Arietta's house in northwestern Connecticut.
Sam had been raving about Clamp's for years, but he was concerned that it had gone downhill since the great-nephew of departed founder Edwin Clamp took it over. We arrived at Clamp's around 2:15 p.m. two Saturdays ago. It was shut up tight. I wandered up to the sign leaning against Clamp's exterior. The sign told the story.
That's right. Clamp's closes every day of its season (late April to Labor Day) between 2 and 3:30 p.m. I railed against the hamburger gods to no avail. Sam was undaunted. "Don't worry, Eddie. We'll come back tomorrow. For now, we can go grab a burger at the Gooseboro Drive-In. It's really close."