I ' m inclined to think this person was legit , But was also very scummy and you were right to run . A few years ago my old roommate bumped her car into a wall and had damage similar to what you described . She came across a similar person in a random parking lot offering to repair it . Her dad had just got her the car and was stressing about the damage so she bit . He did the repair and while it wasn ' t replacement bumper perfect it still looked considerably better . So I know that okayish repair to minor damage does exist from mobile repair dudes like this guy . That being said even if this guy was legit you stayed calm and level headed when he was trying to pressure you into immediately agreeing , and when you held your ground he got angry and actively tried to prevent you from using him for the service by taking back his business card . You made the right call .