After Musk was told that Zuckerberg was not joking about the situation, the Twitter owner wrote "If this is for real, I will do it" with two fire emojis.
Smiley was ordered to pay PBS $2.6 million after a jury found he broke the morality clause in his contract. He has continually denied any wrongdoing in the case.
The incident occurred when the reporter visited the professor's residence seeking comments following her verbal attack on pro-life activist students at her university.