a thought about the "Invisible Light Agency":

those kind of agencys are common in l.a. as their technique is needed for making movies.

this one located in the cecil hotel has no further information on the homepage, so maybe it is out of business.
btw, there is no further business description (just "establishment" and " Fence-Sales, Service & Contractors " as tags.
... and the homepage has no valuable content.
maybe some US resident wants to give them a phone call on monday ? (213)281-9182