Truck will not budge 06 f150

So this week end I changed my brakes. Flex lines, caliper, rotors and pads in the front and rotors and pads in the back. I greased all moving parts where they should be, gravity bled my brakes making sure the master cylinder didn’t run dry till there were no bubbles and the fluid was clear and pushed it out of the garage(no reverse)?rolled just fine. I pull it along side of the garage and the next morningh I cat get it to move, at all. Not forwards,backwards, nothing. Since its around 25 degrees out now and was 14 last night, could the cold be the problem?mabey making the shoes stick? Or did I mess something up? I’m in no way a professional mechanic, but I’ve never taken a vehicle if mine In to a shop. I’m an avid ‘DIY’er.so I HAVE to figure this out. any help would be greatly appreciated. Thank you