The laws are in the map, of course (if it came from mind, it is necessarily of a map). And what we call the 'territory' is a map itself. The map/territory distinction is just a useful analogy for explaining that our models of reality aren't necessarily reality (whatever that actually is). Also, keep in mind that there are many incompatible meanings for 'reductionism'. A lot of LWers (like anonymous1) use it in a way that's not in line with EY, and EY uses it in a way that's not in line with philosophy (which is where I suspect most LWers get their definition of it from).
And if the physical laws are in the map, what represents them in the territory?
Good question. A description is sufficient for execution, but what executes the description?
If it's worth saying, but not worth its own post, even in Discussion, it goes here.