Discussions

So I am in the car line-up at Tims to get a coffee this morning and the line-up is out on the street. There is only cars all going the same direction on the street. Wait about a minute and then the guy in front of me gets a spot in the line and then a car drives up from the other direction and proceeds to take the next spot in line. I had been patiently waiting in the street line for some time so I thought this was so rude. I pulled up beside him and ask him what he is doing and he says that the rule is to alternate cars based on direction. Considering I had been waiting for quite some time and he didnt wait for more than 10 seconds I wonder if people have any manners any more.  
 
Am I way off base to think this guy was rude or do I just not know the proper rules anymore...