Considering you're clearly past yoyr first trimester, that much physical activity could actually help you now amd with delivery, unless you didn't do ANY before now. Then you'll have problems. My mom was a waitress at 2 jobs for my sisters, long hours on her feet, walked to and from work daily, and it made her delivery way easier. I think just talk to your boss and see if they're willing to keep you in doing things that won't hurt your physical capabilities. But really, doing a lot of walking and exercise is only going to help you, unless it puts you in pain then avoid it.
Are they willing to work with you? Like as you get farther find you simple tasks to do? If they are willing to work with you that's awesome. I started my new job at 18 weeks and they are great. My boss is willing to work with my Dr appt and always asking if I'm feeling good. I hope you find a job with great employers!
Sounds wonderful, but you don't wanna put you guys at risk. I worked at a hotel for a month and had to quit because it was to much bending and reaching and extra movement