Udon Thani town traffic is bad on the daily rush hours and all-day at weekends, same as pretty much any other major Thai conurbation and especially Pattaya.
The dining choices are far more varied these days, western, Korean, Japanese, Indian... there's even some genyoowine Isaan tucker!!
Of course, if driving and parking for dinner is too much of a faff about or even if one can't be arsed to rustle-up something in one's own kitchen, there's delivery and, even in bad traffic, that's pretty fast (unless it's raining).