Has this happened to anyone? What would happen if you showed up and find that your ticket is invalid. I'm guessing it varies by venue but is there any recourse? I can't imagine they'd just turn you away without at least a little investigation.
this hasn't happened to me, but i witnessed it at Outside Lands SF this year and it is devastating to watch. there is basically zero recourse for the buyer of the ticket that scans invalid and many of them have very legitimate looking pdfs and emails they got from craigslist. neither the ticketmaster folks nor the venue folks tend to be super compassionate in my experience. it's a real mess though, the venues often h…
As an aside, many festivals and venues don't disallow re-entry due to TM implementation (I've been to enough TM ticketed events that have re-entry). They ban in-and-out so that you cannot go elsewhere to drink or eat without the festival surcharge and kickback.