The (highly paraphrased) scene:
At the rental car place, 11AM, Friday.
Rental car guy: Hi, do you have a reservation?
Me: (gives name)
RCG: I don't have a reservation under that name.
RCG: Nope, no reservation.
Me: But my husband set it up, we always rent from here. We're supposed to be going to Lansing!
RCG: Well, I have an extra car, you can rent it.
Me: Ok, cool!
Me: Honey, they didn't have a reservation for the car.
Hubby: What? I checked it this morning, they should have! Did we get the cheaper rate?
Me: I don't know, I don't know what it was supposed to be.
Hubby: Let me check it again. If it's different, we're going back to get it fixed.
...Later, hubby is at home, checking the reservation...
Hubby: So... yeah.
Hubby: The reason they didn't have the reservation... is because it's for next weekend. The tickets are for the 28th.
We're going out driving anyway, maybe even stay at the same hotel we're staying at next weekend. We'll see. And we'll definitely be better about double-checking calendars from here on out!