My friend has been going there for the past few weeks and one waiter there has been flirting with her and he asked for her number and yesterday he bought her a margarita with alcohol in it and she’s only 20 so that is bad service right there

Yeah that is really sketchy, she should talk to management about it, i think they will solve the problem. If not, some sort of law enforcement would probably be next option

She should have contacted management first. Then law enforcement if not resolved.

I would talk to the local police

She should have called the cops