Well your high GPA and 161 LSAT is an exact fit for the profile of those admitted off the waitlist so far on LSN. So, maybe your call prompted a good decision for you.
But, there's no question in my mind that it would take an awefully long time to go through all of the waitlisters. There are about 200 waitlisters on LSN, and the total number of applicants on LSN is about 10% of the total yearly number of applications that they get. So, if LSN has a representative distribution of the applicant pool, then there could be as many as 2000 people on the waitlist.