Originally Posted by
Alitam
I could easily justify using a city tour if connection was longer. But with only 5 hours, can I?
You are way overthinking this. Immigration does not care whether you have a connection or not. As far as you're concerned about them possibly checking the time, there are a ton of reasons for people to leave for a short time. Maybe they want to have a cup of coffee at the airport with their uncle that lives in Panama. Maybe they want to stop at the nearby mall. Have no fear, you will be able to walk out without any problems.