Disclosed herein are reagents that include a moiety that includes a metal such as titanium and that readily binds to phosphorylated molecules the reagents also include at least one moiety that produces a signal or that binds to a molecule that produces a signal. The spoiler assembly includes a coupling member adapted to be coupled with the vehicle’s hitch, an intermediate portion extending upwardly from the coupling portion, a spoiler portion having opposite ends that is connected to the intermediate portion, and at least two stabilization members. The status information signals are preferably processed and evaluated with reference to rated maintenance and repair reference information to provide instructions as to what needs to be done where and when for a maintenance or repair.