That does not sound very good. I've hatched thousands of colubrid eggs over the years. Generally speaking, the snakes will make a slit (and often times more than one slit) in the egg. Sometimes the snake will stick it's head out of the egg and you'll see bubbles. But it there's liquid oozing from an egg, it usually means the egg is bad (or has gone bad).

The "pin hole" thing is weird, though it could be weakness in the shell where the eggs contents are coming out of (rather than a baby snake poking a hole). You did not mention if you were incubating the eggs, but I'd imagine they'd take 55-60 days to hatch if they were incubated at a set temperature in the low 80s (longer if they were not).

Here's a Black Racer I found back in April: