Your vehicle will be fine to drive straight after your repair has been finish and will not be affected by rain or normal weather conditions.
Allow a minimum of 3-5 days before making any contact with the freshly repaired area. This is to avoid damage whilst the fresh paint fully cures.
Your first wash should be with a clean, soft wash mitt. Using clean water and a mild, PH nuetral shampoo.
It is advisable to avoid jet washing yet.
After 30 days your repair will be fully set and should be cared for as per your manufacturers handbook care guidelines.