You have an overactive imagination and not enough exposure to the real world. If you've been polite, she'll simply tell you she's sorry but that this place isn't like that. Why wouldn't she?
And no matter where you are, brutish grab-ass and rudeness will get you tossed. Why wouldn't it?
If you're uncertain, ask right at the outset for the upgrade you think might not be on offer; that gives you both a chance to recognize the misunderstanding before anyon's looking at money wasted or a half-hour's work un paid-for. If you can't stand blushing at being refused, don't go to mystery places, but honestly, what's so bad about a blush?