is this place dog friendly?

You may take ur dog, but must leave dog outside if not a service dog. You can seat and have coffee outside with ur animal. (I'm a dog owner) I go for coffee a lot with my friend with 4 legs

Any store that serves food won't let let's in, right?

Some time if you have your dog in a bag they won't say anything but not big dogs

Service dogs only

I have seen dogs inside and they weren't service dogs.

Service dogs only sorry

I doubt it.