Note for the future self: when they say, “accident” at the d.c. , it could mean two things, not one.
So, explore carefully the wet biohazardous garment that came sealed in a ziploc bag, and pay more than passing attention to its contents – do not just toss it in the washer with the rest of the laundry.
The few extra seconds of a moderately unpleasant task can save you from hours of a VERY unpleasant task, and despair when you realize that all your clothes unfortunate enough to share the unlucky wash are probably going to smell like this forever, and midnight apartmenttherapy searches on how to thoroughly clean a washer.