Transmission Fluid Temperature Sensor Circuit High Input .... How Bad ?

hello,, today start raining , and was driving for few hours under the rain ,

anyway, the O/D Green light start blinking .
I read the cods, and found this new one
Transmission Fluid Temperature Sensor Circuit High Input

any idea what to do, ? is it ok to drive it tomorrow to my classes ? or should I call a break down to take it to the garage ?

Thanks