I told her I didn't want anyone to get in trouble, and I'd always had great service, so I just wanted to let them know. She was super nice, and I think my being polite about it helped a lot. She was also upset when I mentioned my phobia of cockroaches, and agreed this wasn't something I should have to be put through.
I'm still gonna try the Department of Health tomorrow, but at least ONE person with CB acted how they should and jumped on the ball.
Thanks for all your advice too!