I also got a small check out of the blue from Toyota dealer I bought my 06 Prius from in 06. It was for that reason.I got a Check like that with my motorhome because they over estimated dmv fees.
AgreeI don't think anyone of us can help you. Call them!
Actually, I keep my cheque in my frunk. We Canadians pick and choose our quirks carefully. I have literally been in the grocery store and heard an announcement for 5 lb bags of potatoes on sale for $1.99 per kilogram.It's a check if you keep it in the frunk. It' a cheque if you keep it in the froot.