What do I do when someone is intentionally flagging all my craigslist ads?

I worked for an independent mattress retailer for about a year and a half. It was clified as a small business but we sold a lot of beds out of there. Anyway, recently I decided to stake my own claim and open up a shop of my own. To make a very long story very short, the owner was none too pleased. He even went so far as to attempt to have me sign a non-compete agreement under the ruse that I could be part owner of his business someday (he was actually just trying to make sure I didn't open a shop and compete with him). Rather than being happy that I've decided to open a place of my own, he's been very vindictive and flat out childish. I guess I'd be a little disappointed if I were in his shoes but by the same token I wouldn't be acting like he's acting now. Anyway, my primary advertising strategy involves Craigslist and so far he's flagged just about every ad I've placed...and I've posted about 7 so far in a week! I've not flagged any of his ads because I'm not going get into a "spat" with him and be his chief rival...that's not how I roll. Our market is big enough for both of us to succeed. Is there a way to keep my ads from getting flagged by him? Is there a limit to how many ads you can flag in one day? How can I keep him from infringing on my advertising strategy on craigslist?