This was a total waste of time. I asked them beforehand if they were only hiring for low-paid CSR jobs, and was told to check out available positions in Phoenix online & come on down. I did so, applied for two Team Lead positions & traveled in the Phx heat to the event.
The positions I applied for were (teehee) "not available" & all they were hiring for were low-level CSRs. If these events are only for entry level or if the company's job postings are invalid and/or fraudulent, they need to post some sort of warning for more highly skilled job seekers not to bother.
I know I won't do so again.