Removing Crap from Paintwork

I am over it,as the restuarant next to my wifes work decides it doesnt want to keep its exhaust filters in place it spits all the residue (peanut oil, thai Resturant) over both our cars +other cars in her private carpark, depending on which one she takes to work, either the prado or the other toyota, Have just spent 1 & 1/2 hours on bonnet alone trying to remove the little brown dots all over the paintwork, still have the rest of the prado to do, roof will be a nightmare, can see it all over the sunroof. Any one got any ideas on what will remove this alot easier then my fingernail on each dot then having to polish it as well. I dont mind polishing my cars always have, to keep the paintwork in good nick but have better things to do with my time removing brown dots that is caused by someone not wanting to do the right thing and keep their cooking filters in place. I have contacted the council who didnt bother to get back to me, have contacted the EPA and they want nothing to do with it as its a small business, what small businesses cant pollute like the big ones ?? she has no where else to park so isnt an option, has used a car cover on hers afew times but to hard for the wife to put up over prado, and why should she have to, What else could I use to remove the crap ??? Any ideas would be greatly appreciated. Regards Steve