Life for Shea Petaja felt like a slow-moving car crash; the tragedy nearly broke her. Until one night at a comedy club ...

NBC's newest hit comedy, St. Denis Medical ... the episode's credits included an emotional in-memoriam tribute for Philip D. Shea, complete with his photo and an "In Loving Memory" message.

The road trip comedy becomes an unhinged odyssey of drug-fueled disasters, near-death experiences, and criminal encounters.

Now, Ice Cube's son O'Shea Jackson Jr. is taking the comedian to task ... "A metaphor about getting f-----d business wise by your manager is not the same homie,” wrote Jacskon Jr. "He ain ...