Thank you! My intended landing destination would be Mississauga as well. Can you tell me where did you go exactly? I do not think I can request a physical abstract mailed to a Canadian address from Texas DMW.The reasons to get the physical abstract are :
a. The agents don't accept Online prints in some locations.
b. They need it officially from Texas DMV in an envelope. For my friend they have denied exchange in the Etobicoke Drive center as his abstract letter was not folded like mailed in envelope. I would suggest take it as is to them.
In my case at Mississauga Drive test center they didn't ask for folded driving abstract and the agents were pretty cool about it. I would suggest you take a online print with the receipt and visit the drive center to find out what they say about it.