Is it possible to access a value which is given as a bibliography option. For example if I have

\usepackage[somekey=foobar]{biblatex} 

can I get the value (foobar) of somekey as a macro like \KV@<family>@somekey. I tried to find it out and had a look at biblatex.sty there i found the \define@key macro which is from keyval.sty as I know now. My search ended with the macro \KV@blx@opt@pre@autocite{#1} with which I could change the value but not get it.

As you can guess I’d like to get the value of the autocite option.

Update

Maybe Joseph is right, so here is want I want: I want to be able to change the behavior of a macro according to the autocite option. The macro is \quodecite (see biblatex: Handling secondary ("quoted in") citations) an since this is defined via \DeclareMultiCiteCommand I can’t use \DeclareAutoCiteCommand I guess. I could have asked Audrex this in the other question but I thought that I can solve it myself which leads to the question if I can access a key value …