That was a good test to unplug one door switch and try to screw it up. I was able to very slowly move the switch so the ground lifted and then move it back and it found a bug in my software that kicked the solenoids back the same unlock position. Not that anyone would have seen that but it was a simple software change.
I still have not tested it with solenoids but those work faster than the actuators and my relays are rated for 20 amps continuous and much higher for peak.
I will now build up 10 units.