Still not sure what pop is because at first I read poop and I laughed. But if it is that northern version of soda or "Coke' then maybe try some damp rags to moisten it up and then use an iron to steam the fabric if you do not have a steam cleaner available. Or you could try a squeezed lemon in a mild soap mixture, I have heard of that before. I have also heard of using peroxide, or I have heard of using baking soda and vinegar. Try these at your own risk, lol. Usually there is no substitution for good old elbow grease.
2003 Ranger supercab XLT 2wd 4.0 auto - sold
2004 F-150 supercab FX4 4wd 5.4 auto all black and silver leather interior...rockin' the fullsize