When we arrived in Punta Cana we stopped in the Duty Free store and purchased 3 bottles of liquor. We were told that we will be able to bring it back home after drinking some because it can be sealed closed with the cap. Is this true? We are in DR for 4 more days and would hate to get to the airport and get in trouble for having previously opened liquor or have it confiscated. We have our receipt but want to double check.