And what do you do if it's a "starts right now, from right here" kind of job?
Then the Johnson is coming along, and the decker can meet you en route. Or else the Johnson is clearly unclear on the concept of Rule #3 of Johnsoning: Know what you're hiring for, and how who you're hiring matches that profile.
What if it's in a location that doesn't have Matrix access (such as, say, portions of the Barrens)?
Then you are very likely morons, have been suckered, are helping someone out, and/or deserve exactly what you're gonna get for meeting in some Z-zone location. Be private, but very close to a public space. Believe it or not, that's exactly why I like the back portion of public transportation - back of the bus, back of the last car on the train ...