I have applied for a job and was instructed to hav...

I have applied for a job and was instructed to have a drug screening at this location within 24 hours. I waited 1 hour yesterday between 10:30am and 11:30am while the door remained locked during staff hours. I am now here at 8:30am the following morning and no employees have even arrived. I find this extraordinarily appalling because how am I suppose to convince a potential employer who doesnt know me personally that the business contracted to do drug screenings with them is incompetent and poorly managed?