Back in the bad old days before we paid attention to drinking and driving, my brother got pulled over by a cop at 2:00 AM and was clearly over the limit (1969, small Louisiana town, everyone knew each other) for weaving to the side of the road where my other brother was pushing his Triumph 1968 Trophy 500 home after running out of gas.
the cop made them promise not to put tjhe drunk brother back behind the wheel and let them go with a warning. they went to get gas and sure enough, the drunk one did not drive the car home. . . . he rode the bike home so as to not be a liar.