I sill get pedicures and manicures, my salon is just well ventilated so I don't have to smell people's acrylic and for pedicures I get my water warm instead of hot
I read it's the spot between the heel and the ankle/ calf area that can trigger labor. So maybe just get the hot wax to soften your feet and then have them paint toe nails and skip the massage all together to be safe
Watch the massage on the feet and lower legs. I think certain areas can trigger contractions. I opted for hot stone pedicures during pregnancy. No deep massage.