the place we went to for my bike's inspection, the person there didn't ride our bike. he got my dad to ride it in a circle, then put on the brakes, then turn on the lights and honk the horn. took less than 5 minutes to complete.
Unless you have trashed your bike or done radical mods, you have nothing to worry about. Wont take long. When I had mine done it was raining and the tech said since I rode it up there it must work fine. TX.