After a bit of digging, the Target at 4120 Palisades Center Dr in West Nyack has Limited Stock, which means you should probably call before you go to have an employee double-check.
The next closest one that claims to is in Jersey, which might be a little too far.
However, as close as you are to NYC, I'll bet you could probably get same-day delivery on Amazon.
If you do happen to get one of our SIMs, forward me the receipt (mitch[at]ting[dot]com) and I'll put the difference on your Ting account as extra credit.