The whole troop could only disembark the ship the following morning after unloading their gear. They were then allowed to visit the city of New York. That was when the celebrations began. Limousines picked them up to drive them around the avenues.

` It took us some time to realize what was happening to us. We were the first victors to arrive in America. Nobody could have arrived any faster than us as we left the day of the Armistice. But also and above all, we were French (…) France, because of the four years of war that slaughtered men and cities, (…) was considered as the great nation of war. Moreover, we were aviators…flying men…warriors of the skies.(…)
The aviation was just ten years old(…) We were the conquerors, the pioneers of the sky. How many people had climbed in a plane in 1918? Only a very few…`

At 1pm, they were brought to one of the biggest hotels of the city for lunch. The restaurant of the hotel was decorated with the French and allies colors. There, an extensive lunch was served: `ham omelette & peas, lamb chops, fries, ice-cream, coffee, liquors, wine and huge cigars`.
At the end of the afternoon, they were brought back to Hoboken on a Ferry boat, which was entirely new to them. They got ready for their trip by train to San Francisco and left the same evening in first and second-class wagons.

Unfortunately, I was unable to identify the location of the hotel or if it still even exists. Instead I have attached some pictures of buildings that already existed in 1918 and that  the troop must have had seen during their visit, like the Flat Iron building completed in 1902 and once the tallest building in New York City, the Woolworth building completed in 1913, the New York Public Library completed in 1911 and the Arch on Washington Square completed in 1882.
Finally, you will be able to read the newspaper article mentioning the French soldiers visit on The Brooklyn Daily Eagle dated Monday 25 November 1918, p.2.