Is there a service like grub hub that will deliver from Metro Diner?

I don't think they are, or at least last time i was there I didn't notice any affiliated delivery business logos

Unfortunately they arent listed on grub hub, uber eats or door dash

I don't know, I only stop there before I check in my hotel room

I imagine pretty much any of them will, as long as they're in the service area. Uber Eats, Doordash, etc.