Will, I think you've hit the nail on the head here - if they'd have provided a time, date, or phone number I'd have been completely ok with it :-)
Ally, I gave it a good go with the tried and tested spit and squeegie approach (which in itself sounds like a kind of aftercare package that should be made available after one has been Uni Pussy Fuckd), but to no avail. As such it's looking like I'll resort to 'Phase 1' of the removal process, which - if the popular vote is to be believed - is nail polish remover. I'll go easy to begin with and see how it goes.
Worst comes to worst I'll take a permanent marker in order to recreate a kind of COOK PASS BABTRIDGE state of affairs...