Panel 2: Does that very prominent "EXIT" symbolize anything? Meanwhile, as someone pointed out in yesterday's comments, "Grow up" is not really a deterrent.
Panel 3: Screech of brakes! Is he about to skid into something? Will Liz be unable to stop before hitting him? Will this strip end in tragedy?...
Panel 4: Oh, no; don't TELL me...she's falling for him after all?!
Panel 5: Whew. Not quite that bad; just, as usual, Lynn goes for the anti-climax. Howard is an irresponsible driver; that's how we know he's a Bad Person. I really don't know if I'd feel 100% safe with this guy leaving work the same time as me. But that possibility will no doubt go unexplored.
ETA: Or it could be Cookie Monster's prediction: Howard will cause an accident that sends Liz to the hospital, perhaps in a coma, and Anthony will appear at her bedside to declare himself and pull her back from the brink of life and death.