So it appears I was all worried for nothing... Husband went to drop him off at the vet at 10:15 they took him back into the room and while the vet explained how they were going to keep him to run IV fluids in him to get him to pee to run more test Guinness started to whine so they asked him what was wrong and he wet the table
needless to say they got their sample and he was sent back home which is about a 10 minute drive so by the time they pulled into the driveway at 10:45 the vet was calling to say they rushed the testing and everything came back fine.
Once again Guinness proves he is a smarta** brat