Question about saying “have a good weekend” (Mexican Spanish)

Hi everyone! I live in a city with a large Mexican population, work a retail job, and I’m currently learning Spanish. As a customer was leaving today I said “buen finde!” and he immediately responded with “semana!” I wasn’t sure if he was poking fun and making a joke or correcting me. I was wondering: 1. Is this a correct way to say have a good weekend in Mexican Spanish? 2. What are some other ways to say “have a good weekend” in Mexican Spanish? Thanks!