end grain cutting board - maintenance question

Kind of embarrassed to admit this one, but I BOUGHT and end grain cutting board off Amazon this week.

We just moved and all of my tools are in storage – middle of winter in WI isn’t a good time to move that stuff, so it is going to be some time before I get everything into my new garage & set up – so I bit the bullet and bought one instead of making it.

Anyway, it’s cold and damp outside, box was sitting on the porch all day, who know where while in transit, etc.

Should I let it acclimate to the indoor humidity for a while before I oil it? I read reviews on several about arriving cracked, cracking after use, etc – I just want to avoid that if possible..