Please help, what would you do? Possible dangerous situation?!

Im so sorry I didnt know where to post this i just dont know what to do in this situation??? This guy could be dangerous possibly? And I dont want my boyfriend to get hurt. Just, please what would you do in this situation?
Bfs msg:
"Hey babe, not sure who to ask/talk to, you remember that guy I told you about, the one who was bad mouthing police and the cop was in the store?
He keeps coming around now and talking about all his weed and talking dirt about the army, government and police, and then he gave me his number and name and told me to call him when I finish, saying nothing's better than a young 20 something year old with money ._.
What do I do :3"
My response:
We have no idea how to handle this situation >.> please help. My boyfriend gets off late as well, at a time where the parking lot is empty and everyone else has gone home. Id hate for this guy to show up. And my boyfriend doesnt do well under pressure. In the sense that, out of fear of being harmed he would give in to protect himself >.>