Vision Events interview questions

I sent in my resume and was emailed to answer some preliminary questions. After that I was asked to do an interview. I set up the interview and was emailed to confirm. The day of the interview I was called to confirm as well, she said to call if I was running late because of traffic. I got to the interview on time and went up to the suite number of the office building. The sign on the door said Vision Events. The door was locked. I knocked a couple of times and called the two separate numbers for the business. There was no answer. I waited around for 20 minutes and could not reach anyone. I thought that was very unprofessional, especially for a marketing firm. I received a email a day later saying I did not show up for my interview. I emailed back telling them what had happened. They called and left a message on my phone saying they were sorry for the inconvenience and that I could schedule another interview.