Rep Power: 0

Still had key in ignition and was warming up car interior. Bumped the key and turned the engine off accidentally. Then horn sounded continuously. Thought it was me so pressed the horn to try and stop it. Worked. Then 11:30pm horn went off continuously again. Had to undo the battery. Next day the key turns to the start position but engine wouldn't turn over. Got a jump and able to drive home but car horn turns on and won't stop when key is removed if I put the key back in the ignition horn goes away. Any ideas? Can I just disable the horn without pulling the fuse since that would kill the break lights and I think something else too. Thanks!

Additionally key fob won't unlock or lock the doors. The light on the key fob comes on so I think battery is good.

UPDATE: Turns out the key fob battery being old was part 1 of the problem. The second was the car battery was bad. All is well now.