WOW
Wouldn't have thought something like that'd be a problem out east.
Fascinating though. Here they've recently reintroduced wolves up in the high country (local term used for the high mountains where summer spring and fall are essentially the same 4 month season) so no issues there yet. Coydogs are becoming a problem more locally: coyote hybrid with domestic dogs. Because you never know what breed of dog, and they tend to be a little more social than coyotes, they've gained a reputation for being dangerously unpredictable. They tend to be more common in outskirt suburbs where the two species' range overlap.
As far as rattlesnakes or other venomous snakes, I think allot of people tend to be so worried about them that they assume ANY snake they catch a glimpse of is one when it's really something quite benign.