That said, a phone isn't optimized for picking up the signals. The "karenz" won't have the best reception, but much like we hobbiests have optimized gear for long range, there will be equipment out there with tuned antennas that can detect them at longer range.
I spoke with someone who was involved with helping test systems used to identify rouge UAVs. Your TX/RX and/or VTX are more likely to give you up via triangulation than RID.