Earlier quoted context omitted.
I feel your pain. That's what taxi service has been like for me in SF and LA. Also it was effectively non-existent except for calling to be taken to the airport because there were so few. Japan, or at least the populated parts generally have tons of taxis so they are easy to find. They are polite and very clean, one thing western cabs are not. If they do something wrong (go the wrong way, end up taking the wrong road…
What's the lah mean exactly? Heard it a lot in Kuala Lumpur but did not check then. Can sort of guess, but good to hear from someone who knows. Enjoyed being there.
Americans sometimes put 'yo' end of a sentence to similar effect. Yo.