So we have until Wednesday to pay the remaining $300 on our truck but all of a sudden today it's…

So we have until Wednesday to pay the remaining $300 on our truck but all of a sudden today it's stopped on the side of the road. Mind you, we hardly ever use the truck, we've only used it for three previous appointments and about 5 times to the grocery store. The guy that sold it to us wrote the paperwork out as us paying the full amount for the truck my question is, is that, is there any way that I can get the guy that sold us the truck to go and look at the truck on the side of the road?