Fastest time through 4 states

Coming back to Omaha (sort of, I had to take something of a scenic
route) tonight, at Midnight tonight, I was a couple miles south of the
Nebraska-Kansas border on US 75, crossed the border, went north to
Auburn, turned east toward Missouri on US 136, crossed the Brownville
bridge, stopped at one of the truck stops at Rock Port, turned north
on I-29 and at 1:10 am reached the Hamburg, Iowa exit on I-29. Just
curious if one can do 4 states quicker than that (other than by
speeding and not stopping).

.