Seems to me that NJ has extended its territory to a small plot of land east of the Hudson...

Although don't worry too much:

While suspected instances of 'dillo-to-human transmission have been reported, leprosy remains uncommon in the U.S. and Canada (6,000 U.S. cases) and is in long-term decline worldwide--an estimated 2.4 million cases as of 1994. Fewer than 5 percent of wild armadillos have it, though I grant you that 5 percent of 30 to 50 million is a lot of armadillos.

I was relieved.. no brain tumor as of yet... ''

Squirrels can be nasty, a pair moved into my cousin's house in Cambridge MA, and after months of trying to get rid of it, it appeared in the bathroom. My cousin cornered it and drowned it in a pot. He is normally a big animal lover, but was driven to murder because of those squirrels.

All animal populations expand (including humans) if food resources are available to support them and insufficient predators to keep their numbers down.  (And with birds, suitable nesting habitat).

Coyotes naturally are expanding because they have loads of food resources and no predators in most of the country.  Eastern coyotes, which are a relatively new species and not identical to Western coyotes, also produce substantially more young when their numbers are low.  So the expansion of a population that's moved into a new area is more than exponential.  That's what's happening in the suburbs and now even urban areas, where overflowing garbage cans and huge rodent populations make the livin' pretty easy.

There is literally no solution to the growing coyote problem other than reintroduction of wolves or some kind of periodic near total eradication through poisoning or introduced disease (like France did to its rabbits back in the '50s).

Since neither of those things is going to happen, we may have to just learn to live with them.  On the bright side, they're h*ll on rodents and medium-size critters like raccoons and groundhogs.