LOS ANGELES - Spencer Pratt says his 12-hour detainment at a Costa Rica airport for arms possession has given him a chance at reconciliation with wife Heidi Montag.

Pratt said Monday that Montag stood by him during what he called the "wildest day ever of either of our lives." He says that sparked hope that she might drop her divorce filing. He and Montag were back in Los Angeles after Saturday's incident.

Police in San Jose, Costa Rica, said the couple were briefly detained at the airport for illegal arms possession after security officers found two unloaded handguns in their luggage. Police say Pratt and Montag hadn't declared the weapons and lacked permits to have them in Costa Rica.

After questioning, the former stars of MTV's reality series "The Hills" were released and allowed to leave Costa Rica.