Yes, I have heard Westampton (District 27) on P-3. Could District 61 be Burlington County Prosecutors office? I don't get them on P-8, but on both P-8 and P-9 I have gotten District 35 (Burlington Co. Sherriff) advising the dispatcher of a warrant service attempt. But I'll have to listen more to P-9.
There is not any "61" units in Burlington County. The only thing I can thing of is that maybe you're here 16161 with front end clipping.
P3 and P9 are both North Central based TGs so there could be some transient signals between the two. Plus, there are also times that 27 units and 16 units back each other up and switch over to the respective TG.