Lost Pet: Butters aka "Professor Chaos"

Circumstances

We were traveling in a camper and stopped at Campus RV Park in Kansas City. He got outside and hasn't been back for several days. I travel for work. I have to leave this site and go to South Dakota for work. I am afraid if he comes back and the camper is gone from this site, he'll run off for good. I think there's a good possibility that he was hiding in someone's camper storage passthrough and hitched a ride when they left. He could be anywhere in USA. I have to leave town for work today and I don't know whether to call in and wait or what. My mom lives in KC and she will house him if he is found and returned. He contact information is listed as the alternate contact on PetLink. As soon as he is found, I'll drive back to KC and pick him up. $500 Reward if found and returned.