HillQuest Security & Patrol - Mobile Patrol Security Los Angeles CA. Are you looking for a "mobile patrol security company near me" that should provide high visibility and a quick response to your protection needs? Then, stop your search immediately, as we offer the best mobile patrol security in Los Angeles, CA. Be it residences, commercial buildings, offices, schools or even parking lots; We have it covered with a team of more efficient mobile gasoline officers who claim to work as a shield.