it's a sad day indeed. i personally have only had tool taken from me, i was running on a baseball field, when some local kids came up and asked to run it. i politely told them no, and when i turned around, my tool box was half empty...
i hope that you find your cars, and here's some words from thunderbird junkie, "If somebody steals your RC car, find out who it is and where they live and pee in their cheerios"