If when you dropped it off, the guy rubbed his chin and said "well, we kinda busy, may be ready toward the end of the month." and you replied "hey that's great cause I'm a busy guy for the next couple of weeks and won't be back out this way." Two days later he calls and said your meat is ready. I'd make him wait a bit.

If you dropped it off and he said "ready on the 7th" and then calls on the 6th and tells you it's ready only to have you tell him you're busy till the 21st, I say you may be full of bologna whether you make the pick up or not.