I would have left a nicer review, but our waitress...

I would have left a nicer review, but our waitress Sarah was quite rude with me at the end of my visit. The two stars I'm leaving is simply for the food. I ordered the beef or chicken empanadas and cafe con leche flan. Both were really delicious! I could tell they were made fresh. My stepmom was with me and she ordered a burger. The first issue was when my stepmom got her burger. Sarah failed to disclose that burgers served are blackened on a grill to the point that they look burnt. My stepmom let our waitress Sarah know that her burger appeared burnt and all she got in response was "Oh, it just comes like that. If you don't like your burgers like that you should have just ordered something else." How was she supposed to know the burgers are served that way? The answer was unsatisfactory to say the least, but my stepmom let it slide. She ended up cutting up the burger to avoid eating the burnt parts. Everything went smoothly until I was waiting for my cafe con leche and we noticed a blonde waitress was walking around with her facemask pulled down below her chin (totally exposing her mouth and nose). We asked her to please pull it back up, and the retort we got was "Why don't you put your face mask on?". We're eating at a restaurant...why would we be wearing a face mask at our table when we have food? Regardless, we decided to ask Sarah for the waitress' name to possibly speak to management or mention her in a review. This was by far the most appalling part of Sarah's behavior. My stepmom had left to go get the car as I paid for our orders. I had given Sarah a $5 tip on a $30 order and we had not complained at all during our time in the restaurant. I asked for Sarah's name, then I asked for the blonde waitress' name. The response I got was "Why? If it's for a bad Yelp review I don't think I want to tell you". I was absolutely shocked at this response. I explained her that the waitress has failed to wear a mask properly and then was rude to us about it. Sarah then made an excuse for her not wearing a mask properly (when there is no excuse) and continued to refuse to tell me the waitress' name. At this point I was absolutely disappointed and simply left the restaurant. This behavior was appalling considering how good the food was. I really hope they can improve their treatment of guests and ability to follow CDC guidelines. I will not be coming back to this restaurant, but I might order pickup so I can have the food without dealing with rude waitresses!