I wouldn't wish misfortune on you, but I'm hoping what you see is regional. Up here I've actually been seeing an increase in the number of people who are venturing out in mixed presentation. I think people are starting to test the waters. Of course, more targets means more opportunity for trouble but so far I haven't seen any nor have I heard any reports of problems.
Of course your safety tips are always correct.
Maybe it's just me, but I would think if you're caught out in full dress the most plausible explanation you can offer is being TG/CD. Anything else is a reach. ("I'm what?? Ohmigosh! Would you look at that? I must have put on the wife's clothes, wig and makeup by mistake when I got dressed in the dark!")