Two weeks ago I took the entire week of to visit Arizona, right in the middle of the first cycle of Boring But Strong. I came back last week and picked right up and didn't miss a beat. Granted, I'm following the 5s Pro protocol on the core lifts, but I don't feel any weaker and have zero stalled progress on the assistance sets of 10 x 5. I also logged over 30 miles of hiking in that week, and my conditioning never felt better.
Go and have fun, you'll be fine, just be sure to pick back up where you left off when you return and don't let it turn into weeks or months of a weightlifting vacation. You could even repeat the previous week that you completed before leaving, prior to jumping in to the de-load, if you're that worried about being too out of the groove to progress to another cycle.