Try eBay. There are some "upclose, on the side" tickets listed for July shows, and one listing has a "buy it now" price of $275 for a pair.

The mid-week matinee is on Wednesdays, BTW; not Thursdays.

I've bought and sold some Broadway tickets on eBay, and it has always worked out fine.

Ack! How did I miss that you were talking about San Diego, rather than Broadway.

There are pairs of tickets on eBay for the 7/26 matinee in San Diego for $200 "buy it now"

I didn't mean to imply that it was a different cast in Chicago, just a different production. I would imagine the show was tweaked a bit while it was still in Chicago before moving to NYC, so was perhaps somewhat different in the two locations.