While crossing the street and generally being distracted by her smartphone, Perdue had the unfortunate luck of falling into a manhole. However, due to the sheer massiveness of her curves (mostly brought upon by her pregnancy), she ended up getting stuck, instead of just falling through; thus leading to the eventual traffic problems, and later media coverage, that you all can get a glimpse of here.
Oh and don't worry, the construction crew that was working to free her will be back shortly; they're just going on a brief lunch break. After all, it's not like she's really going anywhere. =p
And speaking of Perdue, for some reason, I can picture her updating her Twitter while this is all going down...
"Oh great, now the news vans are showing up. Worst. Day. Ever. >:["