Stuck Shed On Rosy Boas

I live in arid southern California, which is perfect for my Rosy Boa. When I see my Long Tailed Boa go blue, I typically spray down the interior of her enclosure to raise the humidity while she sheds. I try to do this for all my snakes who need the extra humidity. But what do I do with my rosy boa? High humidity is not good for Rosy Boas, so I do NOT spray. I keep a VERY small water bowl in her enclosure. She just shed recently and this time has some stuck shed. Is it OK to soak her in some shallow water for a little bit, or is that a bad idea. Should I just let her be and trust that she will deal with it on her own? Thank you.
Wayne