You know why that is, right? Snake scales aren't porous like our skin. The ink has nothing to stick to. Really nifty, don't ya' think?
But, yeah. Like said above, the vets use latex gloves during handling of creatures, so you should have nothing to worry about.
Sure do wish I had had some whenever I cleaned out the mulch. I got that crap all under my fingernails, not to mention the micro-splinters I attracted that NEVER bothered anyone else. Ugh!