The 2017 Greater Los Angeles Homeless Count tallied 4,545 campers and RVs in L.A. County that possibly serve as makeshift dwellings. In short, one of America's least affordable housing market forces people to find creative alternatives for shelter. I happened upon the situation about a year ago, trying to find a shortcut on my commute home. I exited the jammed 110 Freeway in South L.A., turning onto Broadway to a landscape dominated by warehouses and light industry. At 133rd Street, I noticed numerous motor homes, most in a state of disrepair, lining both sides of the road. I found similar...