Well, I was on Great Mills Rd in the evening recently, stopped at the McD's next to the Big Lots to get my 11-yr old daughter something to eat (drive-thru), and she said to me, "This place is kind of skanky." Understatement! Lots of "interesting" people hanging out in the parking lot, loud and obnoxious. I would not have gotten out of the car there. Heard the punks working inside saying MF over and over, which was lovely. I can't say there is a particular road that is as nasty in Waldorf as GM Rd is, but I could be wrong. The California area is much nicer, and I feel much safer up that way.
The LP library itself is beautiful, but again, I probably wouldn't feel safe walking from the parking lot into the building at night by myself. I'm lucky that Charlotte Hall is our closest library, but L'town is very nice too.