The reason is, however, simply the conventions applied in the FGDVT to cases where the surface expression is location rather than (= in place of) a (true) addressee (as an animate agent); typically, this happens for offices (to the clerk.ADDR vs. at the court office.LOC), government seats (to the governor.ADDR vs. in Annapolis.LOC), etc.
in all these cases, functors from the valency lexicons and the deep dependencies can easily be mapped to a common set of SRs, taken from FrameNet in this case.