Why do I get the feeling those, uh, bill collectors weren't after the restaurant, but Peter personally? I have a hard time imagining his income (both legitimate and ill-gotten) is enough for his lifestyle.
I don't want to judge a new show based just on the premiere, but I don't think Kitchen Nightmares translated very well to the US screen. There was too much of Peter-and-the-Mob, and precious little else. We never got much chance to find out if, say, the head chef is really up to scratch, etcetera. (I had to admit, though, his reactions when Peter got dressed down after dinner service = priceless.)
I half-suspect that Peter's will get some regular costumers soon... namely, the FBI.