use hot water if anything.
half a quart isnt so bad. you should be fine. if you want to get in there a little better, raise the car, take the wheel off and whipe down with cloth. just make sure to use jack stands. might seem dorky just to wipe down some oil but it better safe then sorry. oh and wear glasses if you peak your head under. i had hot oil pour onto my face/eyes once and you wont believe how pist i was that day. plus it carried abrasive particles and when i tried wiping it scratched my eye and i had to get $70 eye drops and got in trouble with my foreman.
wear glasses. use jack stands. enjoy your clean car.
