While a lot of the reports out of Springfield sound probable to me, eating dogs isn't one of them. Haitians detest dogs. They think they're disgusting. The worst insult you can lob at a Haitian is to call them a dog. (Ironically, the way Americans pronounce "Haitian" sounds a lot like "Hey, dog".)
The car crash claim sounds the most probable to me. Very few people in Haiti own cars or know how to drive, and that leads me to wonder to what degree are these migrants being allowed to drive with no training or licensing? Also, where are they getting the new SUVs I keep seeing in the photos of the mayhem they cause?
An insult to Africa, honestly. Haiti is many times more fucked up than even South Africa.