I have had the same experience last year when my two sons were exiting Qatar after a stay of four months. I was on my way home when I received the call from them that they had been stopped at the immigration. I sped back to the airport and rushed with their passports to the immigration. They could manage to catch the flight just 15 minutes before departure.

Just try to understand the tension all of us went through till they finally went through immigration and got the flight.