Weird Electrical Issue?

[TheHueg]

I own a 2019 RAM 1500 Limited with the 5.7Hemi. I just rolled 75,000 miles. This last week, the alarm went off while I was at a neighbor's home. Key fob wasn't in my pocket or disturbed. Then last night, I went to the garage and the dome lights and driver's screen (not the 12" central screen) was on. I cycled through the "Accessory", "Start", "Run" cycle and then locked the doors. All lights out. Then, an hour later, I note the USB ports both in the front seat and the rear seats are illuminated??? The car battery is exactly two years old (Interstate) and both key fobs got new batteries today yet the problem continues. Any suggestions on probable cause and cure?