There doesn't appear to be significant harm done, so I don't think I'd press for a lengthy prison term.
FINE?
Send both the driver & passenger to driver's training, & community service?
Forfeit driver's license for a period? A month? A year?
For hit & run, it might be difficult to prove intoxication. However, in the states where POT is legal, and even in the states where it isn't, that is one thing that could be tested for even after a significant delay, although it could be more difficult to prove that the driver was actually driving under the influence.