He wasn’t going to the range.
And an AR-15 lying around a hotel room would not make me rest easy if I was one room down.
I have been to a shooting range (tournament)during the day and have had to stay over in a hotel room with my weapons. Not uncommon for me to have several ARs, pistols and long rangers along for the ride.
However, you will not find me drunk, down stairs in the bar and ammunition laying about my room. After a day at the range I am ready to kick my heels up and lay my head back. Oh, and I normally stay at two story roach coach not some fancy smancy high rise.