I enjoyed the 80s setting and the humorous lines, but I had a lot of trouble actually caring about the story or the characters. The fight between the pirate and the warlock didn't capture me -- or, more precisely, it WOULD HAVE if the story had stayed in the original timeline. I didn't really care if Jeff and Kat made it to San Francisco or not, Brady was the catalyst for way too much exposition and little else, and I don't think any of the 80s characters really had any redeeming qualities. Except perhaps Patty, because he was an EMT.
I also felt that it went on for far too long and I somehow failed to understand how 11 hours passed between Jeff getting bodysnatched and Cat/Brady/Rogers going back to the bar -- I had the feeling it was still night. Kind of like that Buffy episode (I may be quoting apocryphally here; I never watched the show) where she's fighting the vampire and he loses track of time but then gets fried when she opens the curtains... or did she open the curtains, make him laugh at her, then stab him? I don't know. It's been a while. But anyway, kind of like that feeling -- like night was far longer than it actually is.
Oh, and FWIW, Arby's old-style fries were far better than their curly fries. And given how good their curly fries are, that's saying something.
Good choice for reader -- with this many male characters around a female MC you really need a woman who can convincingly do male voices without sounding like (with all due respect) Steve Eley's "Megaton" voice from Union Dues.
So, y'know, some good funny bits and a good story germ but I didn't really care for the end result.