Canadian Tire

Hi. I wanted to retun a battery of my car to canadian tire at 1820 merivale road, ottawa. I bought it from carling ave canadian tire. I tried returning this battery but the guy there said he has to perform a test which will be an hour long to check if something happened to a brand new battery because it was inside my car for one and a half day. It dis not make any sense to me because i never opened it, never installed it. its like saying that batteries that canadian tire sell is far low quality as they cannot stand two days of cold outside ? It goes -30 in winters so canadian tire brand new battery wont stand it?
Totally diapoointed with service and customer care. Most stupidest thing i have ever encountoured. You should probably educate your sales representative and staff.