Don't answer the door with a gun in your hand. It would be just as inappropriate if it were the pizza guy that was knocking. If you perceive a threat so great that you need to have a gun drawn ... don't open the door. That's step 1 in this situation. Is there more? Yes. But let's start with step 1.
Just be aware Hoppes oil is nothing but mineral oil. Not really very good. I certainly wouldn’t use it. Its lubricating and corrosion properties are poor. It can also varnish over time.
The white label has replaced the black label, so yes, it has been discontinued. I'm not sure when PTFE was taken out. The formula has changed a couple times from what I know, and for a while it didn't meet Mil-Spec. It now does.
BreakFree is a polymerized synthetic and will not gel up. It also contains advanced boundary film additives as well as rust inhibitors. It contains no wax based substances. Ballistol is an inferior product consisting of mostly mineral oil and alcohol. I wouldn't use it on anything I own. It is...
I can't speak to your video analysis, but I do remember the official report stating that it was .45 ACP. Maybe you have it right and the local authorities got it wrong?
The point is it's not any of your business. If someone wants to carry while they have a couple of beers it's not any of your concern. They don't loose their fundamental rights because they had a beer. What other rights do you propose are taken away when someone has a drink or does anything else...