It's not about the apostrophe, it's about the database
Working in emergency services in the US, I can tell you that the database in question is most likely connected to a map. That map, as PCs in emergency services vehicles become more prevalent is on all of these PCs. The database is a part of that map and contains the names of the streets on the map. Our agency has used a few of the more common programs used for mapping and none of them seems to handle punctuation well, especially hyphens and apostrophes. Usually the remainder of the street names get cut off. In the earlier mentioned example of King's Rd, the name becomes King.