Something to think about

[twoijack]

Hello All!
This may sound silly but I always wondered how they handled the shipments for that case of expensive wines you bought from your local wine store now sitting nicely in your temperature controlled cellar..

Let's say that the wines are coming from CA to NY via trailer on a hot sunny day crossing the AZ or NM deserts.
Are the trailers air conditioned or temperature controlled? Otherwise, your wines are being cooked for at least 3 days and in between, it sits in a parking lot while the driver grabs some zzzz. All while the wine gets cooked even more.
After arrival at the warehouse, the delivery truck takes it to the local shop but I've never seen any truck that are air conditioned. Therefore, the wine gets to cook even more..

Can anyone give me the details as to how shipments such as I described takes place?