Bridgestone Americas Engineer interview questions

First initial phone screening interview went well and immediately got a call for an on-site interview. I flew out and had a panel interview. It was a 30 minute interview... I have never traveled on-site for a 30 minute interview and NO plant walkthrough "because they were very busy". As soon as the interview was over they wouldn't give me contact information and received an email immediately saying they would not be moving me forward. Completely unprofessional to invite me onsite and go through this, knowing you did not want to consider me. Shows a lot about the company to waste someone's time and earned PTO.