I don't think "disrespect" is a verb.

I initially shared EC's reaction to the use of disrespect as a verb. But I have grown used to it over time. I hear it in court frequently. It is used more by some age groups and ethnic groups than other.

If respect is a verb (as in "while I disagree with you, I nonetheless respect you") then the use of disrespect as a verb logically follows (as in "he disrepected my car so I shot him").