Had something similar when picking up my jeep's axles from the parts store (new bearings pressed on). Warm enough day and being parked just the right amount of time. A one off situation. Otherwise I usually add a half tank of low rvp gasoline. That's not a realistic answer for a daily use for two months.
All answers are good.
It all depends on the specifics. You can cross into another fuel area with lower RVP allowance and might be fine.
Issues with winter fuel on warm days can show up different ways depending on the driving and the layout.
It absolutely can be showing up in the carb, even if that's not where the bulk of the vaporization is occuring.
I've posted an AFR graph showing what happened when the top of the air cleaner was removed on a hot day after driving locally with winter fuel. Hot Fuel Lines
Not moving or moving slow has always been a heat soak challenge. Hence the change in fuel filter mounting in 1963 Carburetion and Performance Diagnosis (Session 188) - Master Technician's Service Conference