DLP Policy Rule "U.S. Physical Address" exclusion

My custom SIT may have broken it entirely as my test email sent to outside our Org never set off an alert. 

I'd see instructions to make a custom SIT but I never understood the options. I found the following https://learn.microsoft.com/en-us/purview/sit-create-a-custom-sensitive-information-type and  also looked over "Sensitive information type functions". This led me to "Func_us_address". Building a custom sensitive information type has the Exclude Specific Matches at the bottom of the Edit Pattern flyout. I added every possible spelling of our address to exclude.

Confidence Level = Medium

Primary Element = Function processors: Func_us_address

Character proximity = Detect primary AND supporting elements​ within 300 characters (without Anywhere in the document checked)

Supporting elements = Did not add any

Additional checks = Exclude specific matches: All possible spellings of our physical address and PO Box