Yes, the Society for the Prevention of Cruelty to Animals can be on a talkgroup numbered 2000 (125 x 16 = 2000). The reason why there is a gap of 16 numbers between talkgroups (which start at 16, not at 0) is to allow for special functions. Read all about it at http://wiki.radioreference.com/index.php/Motorola_Type_II
The RIGHT talk-group ID is "1520" (must not have seen the "1" the first time). I heard it today at approx. 1325 hours and there was, again, reference to an elevator. The female indicated the CC # as 12 thousand +/-, which would iindicate a pretty busy job, but I continued to listen for another 1/2 hour and heard nothing.