Unless it's changed in the last eighteen months the area round Anfield contains urban dereliction of a level I couldn't have beleived existed inthe UK. Reminiscent of the townscapes described in Nevil Shute's 'In the Wet' wher he describes a post nuclear war, post mass emigration Great Britain.
But if your'e doing the tour you'll probably be able to get on the stadium/shop car park.
IME the best place to park on matchdays is in the public car park under the Catholic Cathedral then walk/taxi to the stadium. God will look after your alloys!!