3/4 of an hour drive isn't too bad.. at the beginning of the year, I did a trip from NJ to MD.. which was about 3-4 hours. I had battery operated bubblers ready but didn't need to use them. was transferring 12" wolf fish, a 7" payara and flounder. Used big bags, placed those bags in a couple buckets.
If you've currently got a tank set up and cycled, all the bacteria needed is in your filter... i would assume they wouldn't all dry up and die during the trip.