I was at Williams Pinball around this time and we had the "SAY NO TO DRUGS" as part of the built-in attract mode loop.

https://www.pinterest.com/pin/423338433692506875/

We all hated it...but it was gently explained to us by our marketing staff that we were dependent on staying in good terms with Hollywood because we wanted to be able to license movie themes for upcoming games. We were also told that the FBI could have seriously messed with that relationship if they wanted to, to the point of shutting us out. Of course we had to please the AMOA/AAMA and all the other industry groups as well that were receiving pressure...

So in it stayed...for releases to the USA. The home versions and export versions had it removed.