sasengup
The Mishawaka municipal code says, "Bicycles must be walked through nonriverwalk sections of the parks." I'm not sure if Kate's Garden counts as a park, but it's likely that it does.

See Section 58-415(c): https://library.municode.com/in/mishawaka/codes/code_of_ordinances?nodeId=PTICOOR_CH58TRVE_ARTIVBIMO_DIV2BIRE_S58-415RIROBIPASI

Of course, walking a bike for a short distance isn't too much trouble, so this path could be included in bicycling directions. It's just that the bike would have to be walked from the parking lot to the bike path.