Exclusion clause from append using .txt file

[VMay]

Hi everyone, 

I have a script right now that geocodes, then exports out all of the unmatched addresses into a separate feature layer that will be used to manually geocode later on. I am trying to find a way to add some type of exclusion clause before the unmatched feature layer is exported to exclude the addresses from the previous day that were already manually geocoded. I want to use a .txt file that will have a list of all the object IDs that were already manually geocoded to do this. Has anyone ever done something like this before or know a good way to go about it? I've attached a small snip of the place in the script that I would place the exclusion. Any advice would help, thank you!