Starting westbound on LA 1093-3, it does not take long for it to change its winding course.
Westbound LA 1093-3 turns left here. It uses town streets in Lacombe for its entire routing. It's signed here with Monochromes.
Nothing was skipped. Literally, after you make the left turn from the last picture, you get greeted with this sign advising you to turn right to stay on the highway. This is one of the few remaining non-Monochrome state highway shields in Lacombe.
Thankfully, we encounter the END! of LA 1093-3 here at US 190. Take a left to go to Mandeville. A right will take you to Slidell eventually.