The policeman investigating a very sensitive case was attacked after his car had been followed by another car. He is talking to his boss. Policeman: Det här är fan allvar Boss: Jag ska sätta en av våra grabbar på dig. Så att inget mer händer. Policeman: De lär bli jävligt trångt med tre bilar bakom sig. Does "trångt" mean here "safe" (said ironically)? Or does he mean that it will be very inconvenient to drive in this situation?