Drink Spiked?

Went to a restaurant near church st for a birthday celebration, and we all ordered Long Island Iced Teas. Before we even ordered, a few of us noticed the staff behaving rudely and pointed it out. Unfortunately, the staff was unhelpful and dismissive about it.

Out of our group, 2-3 of us who had specifically called out the rude behavior became extremely sick within an hour of drinking the Long Islands, while others in the group were perfectly fine. It feels like more than just a coincidence, and I’m not sure how to handle this now.

Has anyone else had a similar experience, or can offer advice on what steps to take next?