Cows are really hard on trucks. They can do some damage - not on purpose - just because they're strong and like to rub on things. So one of them could've bumped into it, or was scratching herself on it, or was trying to get a good look in it to see how her pregnancy was coming along.
I spent the weekend on vacation, so I missed the 85 degree weather. No worries! I returned to 40 degrees and rainy, so everything seems normal.
Funny thing - since today was rainy, Kris was hoping no calves would be born, and none were. My dad said no self-respecting cow would have a calf on a day like this. They really do tend to have calves on nicer days - chalk that up to instinct and survival skills. After two days of rain ... how much longer can they hold it? When a calf is ready, it's ready, but it is amazing how they tend to have them on nice days. So ... next day without rain? Get ready for some serious calving.