Good on you for thinking ahead. In the often competitive world of “law enforcement funding” it’s the “ritz and glitz” and the “golly, gee whiz” technology that gets the $$$. Stuff that has proved effective for decades gets pushed aside because it’s not “modern.”
A few years back a very large mall in Knoxville had a real problem with car burglaries, purse snatchings, minor assaults, etc. The management engaged a private security company and they hired some riders to just “patrol.” The crime rate went quickly to close to zero. As soon as that happened the contract was cancelled and the miscreants returned (although not in the prior numbers).
A number of mounted units have disapeared (including the TVAs mounted unit). That’s too bad because there are some jobs that mounted patrols just do better than other systems.
May your unit enjoy long life and success! 
G.