Yes. All their food is good and surprisingly inexpensive compared to other restaurants in the area.

Late morning ~11am-ish

Yes!

Yes

They open early and close at 2 in the afternoon I believe they are 7 days a week

Yes

They would probably treat you as an adult guest once you have signed in. Usually, there is a waiting line but everything is done in orderly fashion. However, since you do not drive it would present a problem about driving there, umless you could afford a taxi.

Yes!

Call them. I'm sure they are. It is Sunday and they are great for breakfast.