Well, their week turnaround time looks to be optimistic. Tracking shows they received it last Friday morning. I got an email today acknowledging receipt.
For the benefit of others I'll follow up with a full timeline when I receive the return shipment.
ETA-full timeline below...
~6/10-Submitted recall information
7/5-Received email indicating I was one of the first and I should receive box/instructions soon.
7/29-Received form to fill out and include with return.
7/31-Received box and shipping instructions.
8/1-Dropped off at USPS late afternoon
8/4-Tracking says delivered @11:07am Prescott, AZ 86301
8/10-Received email containing acknowledgment of receipt.
8/10-USPS pickup in Prescott, AZ
8/12-Package received.
I have several other Rugers but this is my first time dealing with a warranty problem. Overall excellent service and the extra magazine is a nice bonus.