'Fore / Four:

A&R men and associates often got African American dialect wrong when titling blues songs. To compound the difficulty, African American songwriters were sometimes poor spellers. So wrong spellings got into record and song contracts.

As regards the meaning:

" 'Fore " is correct. It's short, of course, for "before." The "before day creep" is the act of leaving before daylight, either to avoid further complications with the overnight partner (male or female), to get back to a wife or girlfriend who'll miss her man (or husband or boyfriend who'll miss his woman), to beat the law, or the landlord, or for some other reason.

"Four day creep," though frequently met with in print, is mistaken and a bit ludicrous, if you think of it: having to take four whole days to get out of the house, down the street, and out of sight. If I'm taking it on the lam, I sincerely hope I'm a bit faster than that.

Bob