I have had a terrible time this year with hauling woes, mine was problems with the seller and hauler nto working in sync!
It is terrible and very worrying.
I think that is ridiculous and suspicious if they are doing routine upkeep of their vehicle when it is full of horses?? Certainly there can be unexpected hiccups BUT an oil change and new tires??????? come on now folks! Travel is very stressful and that is a long time on a trailer, I would be most upset too! Unfortunatley, you are somewaht at their mercy now.