Internal Interview process

The person that I interviewed with called my present employer to give them a "heads up" that I was looking for a new job. They are extremely unprofessional and broke the law by doing so. The person that did my phone interview called a 1/2 before the scheduled time. Thet seemed surprised and disappointed that I was willing to take the call . I got the impression that they did not want to do the interview. Later that day my employer was called.