I've never attempted to ride it at night, but my bicycle isn't adequately equipped for that anyway.

According to this website: Pinellas County, Florida - Park & Conservation Resources - Pinellas County Trail Guide

"The trail is only open during daylight hours."

Also according to that website the bridge across Alt 19 just north of Curlew Road is closed until further notice. So you may not want to ride any further south than Ozona.