Thanks Jim for the advice. 

I haven't used the machine in awhile, but I know that this did not happen all the time.  I am not sure if it happened specifically to a certain row or if it was random.  I usually would have the beer on the top racks and the sodas on the bottom racks.  I believe that it was certain rows that this would happen to.
The bottle gate does go back on its own.
Only one bottle is dispensed, but on occasions, the "Have A Coke" light does not go off and you can pull another bottle.