In order to exchange something do customers service has to be open

At a particular store, no. Customer service for the Easton is open late.

Yes

10am-10pm

Probably

Yes it would make things much easier however simple returns and exchanges can be done you just need to find a manager

Not too bad last time I was there , just hard to get waited on to get that answer. I live in A smaller area, better clientel but most inner city Walmart are the same I'm staying here in Marysville