Should I, or shouldn't I?

Waking up to two or three inches of the white stuff and an email inviting me to make an appointment for my booster, exactly 6 months since the second dose.
Looking at their web site, the appointments were 10am today, and then nothing till Xmas Eve.
With a bit of a sniffly nose and the prospect of more snow making the roads an adventure, I chose the safe/cowardly/lazy way out and went for Xmas Eve.

Hmmm, I wonder if that is going to be a mistake?

Ah well...