Calling roles in blinds

Not sure if this is the right place for this post, but I'm putting it here because I don't know where to put it. I just came out of a game when I called top lane and then picked Quinn. There wasn't another player who called top, and nobody told me that it was called. Then another player instalocks top lane (we love instalockers, don't we?) and then, when the game starts, I get flamed by the team until I go bottom lane and play ADC. What I learnt later was that I was the random in a 4-player premade that called 4 of the roles before they got into the game. However, I feel that calling in the game creation screen does not translate into a called lane in the actual game lobby unless it's a pre-made of 5 players. What was the right thing for me to do in this situation? Should I have stood my ground and play top lane anyways (which is usually what I do to instalockers)? Was it right for me to yield and go ADC (which I did horribly at because I very, very rarely play Quinn ADC)? How do you guys feel about calling roles in the game creation lobby?

Just curious, floppy1000