Hi Jeff,
This is a forum that mystery shoppers gather to discuss topics of mystery shopping. This is not a "program" in that it's a company where we can apply for shops. There is a link at the bottom of each page titled "Official List of Mystery Shopping Companies" that you can use to direct yourself to company websites to sign up to shop for them. That being said, it is against forum rules and a violation of the Independent Contractor Agreement (or ICA) to reveal the clients of a particular company so we cannot tell you specifically who shops the post office. However, there are schedulers for that particular shop that frequent this board so maybe they will see your post and help you out.
There are companies who utilize the job board here to post jobs for their companies. Perhaps you can get an idea of what is being offered in your area.
Lastly, and it probably should have been first, welcome to the forum!
@Arizona Jeff wrote:
new to this shopper program,,,,where would USPS be listed on the Forum?
Kim