"We haven't hat that spirit here" is not about alcohol, it is more about energy, enthusiasm vivacity and etc. The captain was saying since 1969, no one here had ever enjoy the energy, the emotion the wild and everything.
As for "Her mind is Tiffany-twisted, she got the Mercedes bends" is some kind of symbolism. I agreed that Mercedes Bends is more likely to be an intentional misusage. I personally belive that it painted a picture of a screw-up girl with some sort of hair bends, dancing in the courtyard.

The mission bell should be the bell at the hotel front desk, so the people can call up the bellman inside.

This song in fact is pretty cool, the guitar part is excellent. I have the full music scorll of that whole album. It was one the greatest song ever.