I seem to have escaped so far, but Hoyt was the perfect place to encounter it. I tried to touch my clothes as little as possible and throw them directly in the washing machine when I got home. Soaped up well in the shower. I may have seen more poison ivy than that someplace, but I don't think I have ever run through that much. It was well mingled with the Virginia creeper (benign to your skin, faintly similar looking) and just about anyplace there was underbrush or wetlands.
It generally takes two weeks to resolve, and may take a few days for all the lesions to erupt (which gives the illusion that it is spreading - it's not). I hope you don't have too much.
If you can find Zanfel (or someone with it) use it for a good scrub. I have some but we're headed to Rockhouse, not Gay City today.
Whatever it was has faded a bit this morning, so maybe it was actually something else? Very strange.