I think that I've fixed the aerocab problems. They seem to be working for now anyway. The prices on these have also been adjusted and they're just slightly above what the taxis charge, like before.
Getting to BLUE level requires using an aerocab or a personal bike/car/aero or dodging traffic if you're that good. The CHEX taxis won't travel there because of how the Express Tubes are configured.. or not configured. They were not lengthened like all the other tubes, so each room goes up by 5 rooms so to speak. Basically the coordinates are throwing off the taxis' ability to find a proper route. Aerocabs skip this process now by traveling up through the airspace between levels.
You'll notice two new skywalks (still need descrips) on green and blue. I put these in place to facilitate the movement of the aerocabs. You may also jump off of them if you wish, although remember to expect possible repercussions for doing crazier things on higher levels.
As always, if you run into a problem while using any of these features or come across something that should not be happening, please @bug it! I saw players run into multiple issues the other night and not one @bug was sent in.