Black Swallow Tail

I observed these three Black Swallowtails in what I believe to be their final caterpillar state before wrapping themselves up in a Chrysalis for the winter.  They ate up most of the Parsley and then there was just one on the stalky remainders of the plant.  I found the other one wiggling around on the tire of our grill so I brought it back to the Parsley.  Or at least I thought I did until about an hour later when I felt something moving on my chest...just above my shirt line.  Oy...sticky little foot pads they have.