He ended coming out after being under there for about 4 hours....I kept hearing him bark through our vents, and there is an opening in our house out in the back and I assume he was chasing our strays or something because I know this is where they were staying at....but the animal shelter came and got him....he had a collar on but I couldnt get a good look at it and I had 4 kids out in the yard to watch over so I couldn't keep an eye on the dog too..he was very very muddy, and had a limp..guess that is where he was stuck at..I dunno..I am almost postive someone will pick him up.....I feel bad but gosh,,,i didn't want to just leave him runnin loose..i went out in the back of our house and started clapping my hands and calling him, with some ham and cheese and he came on out after that....