Hopefully the op has left on his vacation and has everything under control.
The information he was given by calling is correct. I have been in his situation many times. The only hassle I have ever had was returning to the US and the customs lady couldn't read the VIN on the paper through the tinted window it was stuck to. This includes hauling a TT 5000 miles through the US and eastern Canada with nothing more than a paper registration stuck in the kitchen window.
For those of you blessed to live in jurisdictions that have their act together, be assured there are places that do not. In ND they have 6 months to process and send your tags. Currently it takes quite a bit less than that, but a few years ago it was at least that.
Minnesota is currently something like 9 months due to a software upgrade failure. And they don't renew the temporary.
