What type of tub in the rack? IE can she see out. Move her to clean, let her crawl around or put her into a bigger box or something. With any rack or cage just getting opened to feed you’ll get strikes. As stated time to tap train an handle her more. Let her get huffy with you an just keep lightly touching her. She’ll learn you aren’t a threat sooner or later. If she is female it will be later.
Just don’t fall asleep with her in your lap! You’ll be looking for her for a week.
Good luck!