Exactly....he needs to call 911, not his Mom! What are you supposed to do? Pack up your baseball bats and ride off to join the fight? Perhaps DH needs to send him a "sensible" text to that effect in a day or two. Of course, he's probably doing something he isn't supposed to do so he doesn't want to involve the police.....but his choice if he wants to be kept safe.
I still remember the agonizing night we spent this time 3 years ago, when ds was "homeless" near us and we had huge storms with terrible lightening and the only thing honest about my son is that he is very afraid of storms. I was a wreck, while my SWP son drove in one car and my dh in another through driving rain and lightening trying to find him. They had to park and walk behind box stores into woods where he said he lived.....
Found out a few days later that he was safe the whole time, living with a woman he picked up at a bar (and robbing her blind while she let him live off of her while he "looked for work".)
It took me days to catch my breath after that...I was SO sucker punched.
Like you said in a way Blessings...how do you know what's real and what isn't? He could lure you out to some spot in the middle of the night to ambush you...with words or worse. Or steal your car. My son is capable of all this so maybe I'm just generalizing too much. But, sigh, BTDT.