RENO, Nev. — They had a bat problem inside Lawlor Events Center. There was an actual bat delay earlier in the season when the winged critters began dive bombing players and coaches during a game. Nevada staff worked tirelessly with local wildlife authorities to remedy it, using a system of nets to capture them late at night and then releasing them into a more natural habitat than an 11,536-seat basketball arena. They caught 27 of them. So the bats are largely gone. But the ghosts remain, and the ones that haunted San Diego State here last year returned on Friday night — leading inside 20 secon…