Hi,
"Driving under the influence has a hard punishment."
I've repeated the above sentence many times in my mind, and still find trouble accepting it fully. To me, 'has' sends a message that the punishment is an integral part of DUI with or without being caught.
Yes, it's oddly and awkwardly phrased. I'd say There is a harsh/severe penalty for driving under the influence.
Best wishes, Clive