Here's something I don't understand -
This airbus is parked at San Antonio Airport, but the ads-b.nl database does not have the registration, the ICAO, or the call sign.
That's hinky.
I just reloaded ads-b.nl, and it still doesn't show up.
Seems like they test flew it 2 weeks ago, and now it shows up at the airport moving around on the ground near a hanger.
Maybe not the same one OP saw fly in. Just working on it.
American Beauty!
That's all I can help you with. Seems just an ordinary commercial flight.
Maybe the military plane was coincidentally in the area.