Where did they COME from though? Did they come out of the hay? (I hope not)... I mean I'd think if there was ticks laying eggs in the barn you'd have seen the egg layers...
I'm thinking secouno is right- they look bigger after going back to the picture.
Maybe this?
https://pnwhandbooks.org/insect/small-fruit/strawberry/strawberry-root-weevil
Eggs are laid in clusters in or on the soil from June to September. The eggs hatch and the larvae immediately wriggle through the soil to begin feeding. There is one generation per year.