Police in Battle Creek are hoping tips will help them track down whoever left a meth lab in a hotel parking lot.  An employee at the Comfort Inn on Southwest Capital found the meth lab smoking in the parking lot at around 6 last night, sitting next to an abandoned, tan colored Ford Explorer.  Two white males and two white females were seen leaving the Explorer, but Police say it is unknown if they were involved with the meth lab.  Police would like anyone with information to contact them or Silent Observer.