I do have two questions, though:
1. Polaroid wasn't making a black and white integral film in 1980, and FujiFilm didn't make instant film until 1981. Kodak's instant film was color. So how did Kraft produce an instant B+W image?
2. Did you really drink 2-3 beers and then get on a motorbike?
2) We used to do a lot, lot, lot worse than that in the USMC in those pre-MADD days. Different era.
Fun fact - same motorcycle, I was struck by lightning on it several months later, riding home from California (to Ga) on I-70 in Missouri. This was following my discharge (actually, end of active service) in late August.
2-3 beers over the length of time in the story would leave you well below the legal limit and your motor skills would not be impaired unless you never have alcohol, which he clearly stated wasn't the case.
Tldr. Cut the melodrama. It's like being shocked when someone has a beer and walks down some stairs.