Was Alexander Hamilton sent ahead to notify Benedict Arnold of Washington���s arrival just before Arnold���s treasonous flight?

An extract fromAlexander Hamilton: The Formative Years:

On September 25, 1780, on their return from Hartford, where they had a conference with French commander-in-chief Jean-Baptiste Donatien de Vimeur de Rochambeau, Washington, the Marquis de Lafayette, General Knox, and their aids decided to inspect the fortifications at West Point. Nearing their destination, word of their imminent arrival was sent to Benedict Arnolds headquarters at the house of Beverly Robinson on the east side of the Hud...