Just a quick note that in all the brilliance of the Apache mod writers, the RedirectMatch directive does not support question marks (?), that's right, question marks in the redirect URL.

After almost an hour of wasted time this is the only conclusion I could come to. Apparently there is a mod_rewrite work around, but it was too shallow for me to even bother looking at. Apache URL encodes all output by default and the mod_alias authors some how overlooked dynamic URL strings.