For a person who's known to be on cocaine to the point his dad jokes about it on Rogan, no. This is a thing people who take cocaine do with cocaine.
If someone put a gun to my head and asked me to think of excuses? He's got a tube of Orajel in his pocket and he's got a toothache or a cold sore or something.
But again, based on what is widely known about the cocaine abusing son of or 47th president... we can go on context queues alone here, pretty reasonably.
I've never seen anyone rub a zyn into their gums like they were exfoliating their elbows, but I also agree with you.