I'd recommend checking out earplugs that don't completely block out noise like sleeping ones. I have a pair from a Belgian brand called Loop, but I'm sure there's some US brands. I use them when I have to go to the shop or even at home if I can hear the neighbours talking outside, or when I'm overwhelmed and I find my partner too loud (for example when he's loading the dishwasher). I'm sure those would be allowed as you can have normal conversation while wearing them.