stop behind (someone or something)
To come right up to the rear of someone or something and stop moving, especially while driving in a car. I pulled over to let the police car go past, but then they stopped right behind me. Someone walked over and stopped behind me, breathing heavily down my neck. I wish I hadn't stopped behind this huge truck. Now I'll be breathing its exhaust fumes the whole time we're stuck in traffic!
stop behind someone or something
to bring oneself or one's vehicle to a stop behind someone or something. I stopped behind Fred at the red light. Fred stopped behind a minivan.