Listen to the cab driver
So this person got really drunk and their friends managed to use this as an excuse to get a free taxi ride home. Taking advantage of someone when they are very drunk is not a good thing to do and tells a lot about you as a person. This is basically manipulation at a low level.
They don’t even care enough about this person that they seemed to be calling their friend, to drop her off at their house first and make sure they were okay. The cab driver must have been watching all of this in disbelief but kept his mouth shut until later when they left.