I would call.
Excuse me chef. You are a peer. A bit different from someone looking to get a first job. Your perspective is different.I would walk in. Make sure you ask one of the servers, cooks, or even the dishwasher if this is a slow time for the Chef. If the opportunity
to meet the Chef, introduce yourself and explain you are just breaking into the field and just wanted to meet him or he.r Just to network a little because you've heard good things about them.