Did Michelle Obama and Jill Biden Get Booed at a NASCAR Race Sunday?

First Lady Michelle Obama and Second Lady Jill Biden visited NASCAR's season finale at Homestead-Miami Speedway Sunday to honor military troops and families, as well as to recognize new commitments by companies planning to hire and train veterans and military spouses.

While there for a good cause, it sounds like the crowd booed the introduction of Obama and Biden over the loudspeaker before the two, with a veteran and his family, delivered the most famous words in NASCAR. Video cut by Mediate:

The AP reports that the women had received a standing ovation at the pre-race drivers' meeting Sunday, where Obama said NASCAR has been "amazing in terms of its support, not just today but every day for military families."

But while serving as a grand marshal for the finale Sunday, it sounds like NASCAR fans in Florida are not fans of the First Lady.

Do you think the crowd was clearly booing Mrs. Obama? Does that cross the line, given that in addition to Biden, the First Lady was serving as a grand marshall with a veteran and his family while honoring the military?