[Idiom] in downtown

[sitifan]

in downtown
https://youtu.be/0wigH_snITw?t=188

Is the phrase "in downtown" acceptable to native speakers？

 

[emsr2d2]

Not without something else after it, no.

I am downtown. :tick:
I am in downtown. :cross:
I am in downtown Los Angeles. :tick:

 

[GoesStation]

I am in downtown Los Angeles. :tick:

What Google Maps told me one day when I arrived in a famous neighborhood of downtown LA: