The other day I had my annual eye exam, and while parking nearby, I noticed this nice spot for a geocache. During the hours of 9-5 M-F, you will have to be super ninja stealthy. Early in the morning, after 5, or on the weekends you should have the place to yourselves. Given the close proximity to the parking garage, GPS signals might be "fuzzy". Therefore, pay particular attention to the following:
1. No need to enter the parking structure
2. The cache can be located while your feet are firmly on the ground.
You are looking for a small magnetic key holder
3/17/21 Update
What was once a bank drive-thru near GZ has been replaced by Coffee Shop drive through. Muggle traffic patterns are now likely different.