Restaurants like this can be tricky. This place gets regular audits from the Internal Revenue Service, health, and even Performing Rights Organizations (PROs), so they're a bit reluctant to try anything that isn't sttrictly by the book and could potentially get them fined. I spoke to my new barber shop though and I'll be onboarding them shortly and sharing some videos with my experience.
Small shops like that are more willing to try something new.