Yeah, that's a gem. I love the music -- doesn't the Phone Company write the greatest songs?
It looks like most of the other tourists weren't aware of the filming; look at the angry woman when the couple muscles in front of her to watch the band.
MST3K also did a number on it.
Nobody every really thought about a portable radiotelephone, though there's an amusing example in "Once Upon a Honeymoon" (also MST3K-ized). The angel has a rotory-dial cell phone.