Yeah, an ERA Tonneau is only $350. That's really not a big deal in the scheme of the the car. I doubt you'll be leaving it anywhere that somebody's going to mess with it anyway. Actually, unless it's three in the morning on a back street somewhere, people seem to keep their distance... like it's going to bite them or something. But if you do take it on a trip where you're not sure where you're going to be parking, the best defense is to carry the plastic coated heavy gauge cables and chain your car to a fixed object and then put a car cover over it. Most of us here could hotwire your car just as fast as you can start it (even if you have a kill switch for the MSD box hidden somewhere) and even the ones that can't handle a wire and alligator clip can push your car away and work on it at their leisure.
