Mass pickpocketing at ATX show

Last night at the ATX show, around 20-30 people including myself had phones pickpocketed. For me, it happened right next to the pit during the first 30 seconds of the opening song. Everyone else I talked to were also in the same area towards the front or near the pit. The venue staff just told everyone to go home and file a police report in the morning. I checked the location on my phone and it was about an hour north of the venue right after the show ended before it got turned off. I've been to a lot of shows here and never had to worry about this before, so I'm not sure if this is an ATX issue or a peggy show issue. Be safe and put your valuables in pockets with zippers/buttons if you're going to be near the front at his upcoming shows. :(