I have tested my ipilot remote to 300 ft and worked fine, the most I have remote control the boat while not in it is about 100 ft. I have done just what you are trying to do and have had no issues. Last time FWC man was at the ramp and wanted to search oh I mean safety check my boat once I pulled out. I kicked my boat out and walked away and hit spot lock when boat was away from dock. I do not think he could decide between jumping after boat or chasing me down. I went to my truck backed it down ramp got out walked over to dock drove back back to me got in loaded boat. FWC man came over and inspected me, we had a laugh.

I pilot will hold its last command until it gets a new one or does not have enough battery to operate.