Earlier, Hugo Gallet scored 1:04 into overtime to give France a 2-1 comeback victory over Italy, the team’s second win in the tournament.

A New York–based painter named Emile Gallet immediately leaped into the breach, writing to the museum to defend their honor: “I beg to state that it is impossible that the work selected has been made by Disney alone, this sort of design is what I call a composite work to which about a dozen of artists can have contributed.”

Looking ahead at the possibility of more rain through the rest of the week, Mr. Gallet stashed sandbags nearby, not taking any chances on a light forecast.

“It’s sad that when your crew knows what they’re doing, they do it real well and it don’t take long,” Mr. Gallet said.

Blake Gallet, the owner, said the downpour on Monday, when the sky opened up right after work, took him by surprise.