use a mix of fairy liquid and water, apply generously to the residue and leave for a few minutes then try to sponge off. I don't think that it would be wise to try nail varnish remover as it may damage the lacquer, even if it doesn't remove the paint.
A rag dampened in either meths or petrol..
this will not damage the paint or the finish
the solvent acetone used in nail varnish is similar to paint thinners or cellulose thinners and can damage surfaces