Teleworld Solutions RF Engineer interview questions

I was contacted within a day of responding to an online posting. The interviewer neglected to mention that it was a contract position until well into the conversation. They also quoted the pay as a yearly salary for a 3 month contract. When I started mentioning terms like Salaried Exempt, I think that they got a little spooked that I knew enough about employment law to call them on things and they went dark. Too many red flags from start to finish.