It was on an asphalt climb, with a sponsored bike, front tire? Just keep riding in stead of waiting by the road. He knew how far the team car was, and that Mavic isn't the best of help. How much time can you lose in the 3 minutes it takes the help to reach you, as you soldier on?
Even on an MTB, superlight 2.35" tire, one can keep riding at decent pace, let alone on an asphalt climb. A flat tire is not the end of the world. Sit back, shift down, pedal hard. A 23mm road tire, let alone a tubular, isn't that bad to ride on. It hurts your cycling heart to roll on the (probably carbon) rim, but HEY, you're in the TdF for crying out loud.
I am still of the opinion that punctures on a pro road bike are an untimed voluntary affair. MTB amateurs don't even flat anymore, and that's after they failed to even mount innertubes in non-tubeless specific tires. A little bit of liquid sealent goes such a long way against punctures. And everyone's bike is 6.8kg anyway. Flatting is a choice.